PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size: 37,144 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 28 May 2016

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan creates the following folders:

  • %User Temp%\is-5A0S5.tmp
  • %User Temp%\is-G8NRG.tmp
  • %User Temp%\is-G8NRG.tmp\_isetup
  • %User Profile%\CryptnetUrlCache\MetaData
  • %User Profile%\Microsoft\CryptnetUrlCache
  • %User Profile%\CryptnetUrlCache\Content
  • %Program Files%\WebBar
  • %Program Files%\WebBar\2.0.5749.22382
  • %Application Data%\WebBar

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other System Modifications

This Trojan deletes the following files:

  • %Windows%\Tasks\Temp{142c9876-8870-4e87-a46a-271df2b38921}.job
  • %Windows%\Tasks\Temp{8404bee9-d513-4634-87e6-8a05d1dd44e5}.job

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
wbsvc

HKEY_CURRENT_USER\Software\Microsoft\
Direct3D\MostRecentApplication

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
Wb = "%Program Files%\WebBar\2.0.5749.22382\wb.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
Version = "2.0.5749.22382"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
TrackingId = "default"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
Profile = "default"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
InstallTime = "56435bc"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Inno Setup: Setup Version = "5.5.5 (u)"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Inno Setup: App Path = "%Program Files%\WebBar"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
InstallLocation = "%Program Files%\WebBar"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Inno Setup: Icon Group = "Web Bar"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Inno Setup: User = "Wilbert"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Inno Setup: Language = "en"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
DisplayName = "Web Bar 2.0.5749.22382"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
UninstallString = "%Program Files%\WebBar\unins000.exe "

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
QuietUninstallString = "%Program Files%\WebBar\unins000.exe /SILENT"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
DisplayVersion = "2.0.5749.22382"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
Publisher = "Web Bar Media"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
URLInfoAbout = "http://www.{BLOCKED}bar.com"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
InstallDate = "20151111"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
MajorVersion = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
MinorVersion = "0"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
wbsvc
EventMessageFile = "%Windows%\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
FailCount = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
LastCheck = "56435416"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4
Blob = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
02FAF3E291435468607857694DF5E45B68851868
Blob = "{random values}"

HKEY_CURRENT_USER\Software\Microsoft\
Direct3D\MostRecentApplication
Name = "wb.exe"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4EFCED9C6BDD0C985CA3C7D253063C5BE6FC620C
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4EF2E6670AC9B5091FE06BE0E5483EAAD6BA32D9
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4C95A9902ABE0777CED18D6ACCC3372D2748381E
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4BA7B9DDD68788E12FF852E1A024204BF286A8F6
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4B421F7515F6AE8A6ECEF97F6982A400A4D9224E
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
47AFB915CDA26D82467B97FA42914468726138DD
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4463C531D7CCC1006794612BB656D3BF8257846F
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
43F9B110D5BAFD48225231B0D0082B372FEF9A54
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
43DDB1FFF3B49B73831407F6BC8B975023D07C50
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
40E78C1D523D1CD9954FAC1A1AB3BD3CBAA15BFC
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4072BA31FEC351438480F62E6CB95508461EAB2F
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
3F85F2BB4A62B0B58BE1614ABB0D4631B4BEF8BA
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
394FF6850B06BE52E51856CC10E180E882B385CC
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
36863563FD5128C7BEA6F005CFE9B43668086CCE
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
2F173F7DE99667AFA57AF80AA2D1B12FAC830338
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
284F55C41A1A7A3F8328D4C262FB376ED6096F24
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
273EE12457FDC4F90C55E82B56167F62F532E547
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
24BA6D6C8A5B5837A48DB5FAE919EA675C94D217
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
24A40A1F573643A67F0A4B0749F6A22BF28ABB6B
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
23E594945195F2414803B4D564D2A3A3F5D88B8C
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
216B2A29E62A00CE820146D8244141B92511B279
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
209900B63D955728140CD13622D8C687A4EB0085
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
1F55E8839BAC30728BE7108EDE7B0BB0D3298224
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
1331F48A5DA8E01DAACA1BB0C17044ACFEF755BB
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0B77BEBBCB7AA24705DECC0FBD6A02FC7ABD9B52
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
049811056AFE9FD0F5BE01685AACE6A5D1C4454C
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0483ED3399AC3608058722EDBC5E4600E3BEF9D7
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
00EA522C8A9C06AA3ECCE0B4FA6CDC21D92E8099
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0048F8D37B153F6EA2798C323EF4F318A5624A9E
Blob = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application
Sources = "{random characters}"

(Note: The default value data of the said registry entry is {random values}.)

It deletes the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\is-5a0s5.tmp\{malware file name}.tmp
  • %User Temp%\is-G8NRG.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-G8NRG.tmp\isa.dll
  • %User Profile%\MetaData\2BF68F4714092295550497DD56F57004
  • %User Profile%\Content\2BF68F4714092295550497DD56F57004
  • %User Profile%\MetaData\94308059B57B3142E455B38A6EB92015
  • %User Profile%\Content\94308059B57B3142E455B38A6EB92015
  • %User Temp%\CabE.tmp
  • %User Temp%\Tar10.tmp
  • %User Profile%\MetaData\74FBF93595CFC8459196065CE54AD928
  • %User Profile%\Content\74FBF93595CFC8459196065CE54AD928
  • %User Profile%\MetaData\34DA60AA966CD9270C5362E6AEF824CF
  • %User Profile%\Content\34DA60AA966CD9270C5362E6AEF824CF
  • %Program Files%\WebBar\unins000.dat
  • %Program Files%\WebBar\is-87PCC.tmp
  • %Program Files%\WebBar\is-HMDL2.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-TSQ5N.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-BS4JB.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-GNRQN.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-U97FN.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-NPVA0.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-78I3O.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-PM2JK.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-57PF8.tmp
  • %Program Files%\WebBar\is-0R9MO.tmp
  • %Program Files%\WebBar\is-38OEC.tmp
  • %Program Files%\WebBar\is-T1TVR.tmp
  • %Program Files%\WebBar\wbsvc.InstallState
  • %Windows%\Tasks\WebBarLaunchTask.job
  • %Windows%\Tasks\WebBarUpdateTask.job
  • %User Temp%\Cab30.tmp
  • %User Temp%\Tar32.tmp
  • %Application Data%\WebBar\wb.app.settings
  • %Temporary Internet Files%\Content.IE5\WPF43.tmp
  • %User Temp%\Cab45.tmp
  • %User Temp%\Tar47.tmp
  • %Temporary Internet Files%\Content.IE5\WPF4F.tmp
  • %Temporary Internet Files%\Content.IE5\ZDGZNKA5\facebook[1].cache
  • %Temporary Internet Files%\Content.IE5\WPF52.tmp
  • %Temporary Internet Files%\Content.IE5\BVLBNMKH\youtube[1].cache
  • %Temporary Internet Files%\Content.IE5\BVLBNMKH\listen[1].cache
  • %System%\d3d9caps.dat
  • %System%\d3d9caps.tmp

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Temporary Internet Files% is the Temporary Internet Files folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), and Windows Server 2008; C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), and Windows Server 2012.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • {BLOCKED}0.1
  • {BLOCKED}.66.126
  • {BLOCKED}44.190
  • {BLOCKED}5.83.2
  • {BLOCKED}.29.84
  • {BLOCKED}38.161
  • {BLOCKED}.250.95
  • {BLOCKED}5.100.103
  • {BLOCKED}.44.31
  • {BLOCKED}.197.200
  • {BLOCKED}3.14.192

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine: 9.8

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE
    • WebBar
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • {0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application
    • wbsvc
  • In HKEY_CURRENT_USER\Software\Microsoft\Direct3D
    • MostRecentApplication

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • Wb = "%Program Files%\WebBar\2.0.5749.22382\wb.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • Version = "2.0.5749.22382"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • TrackingId = "default"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • Profile = "default"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • InstallTime = "56435bc"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Inno Setup: Setup Version = "5.5.5 (u)"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Inno Setup: App Path = "%Program Files%\WebBar"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • InstallLocation = "%Program Files%\WebBar"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Inno Setup: Icon Group = "Web Bar"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Inno Setup: User = "Wilbert"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Inno Setup: Language = "en"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • DisplayName = "Web Bar 2.0.5749.22382"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • UninstallString = "%Program Files%\WebBar\unins000.exe "
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • QuietUninstallString = "%Program Files%\WebBar\unins000.exe /SILENT"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • DisplayVersion = "2.0.5749.22382"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • Publisher = "Web Bar Media"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • URLInfoAbout = "http://www.{BLOCKED}bar.com"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • NoModify = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • NoRepair = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • InstallDate = "20151111"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • MajorVersion = "2"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1
    • MinorVersion = "0"
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\wbsvc
    • EventMessageFile = "%Windows%\Microsoft.NET\Framework\v4.0.30319\EventLogMessages.dll"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • FailCount = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\WebBar
    • LastCheck = "56435416"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4
    • Blob = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\02FAF3E291435468607857694DF5E45B68851868
    • Blob = "{random values}"
  • In HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication
    • Name = "wb.exe"

Step 4

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EFCED9C6BDD0C985CA3C7D253063C5BE6FC620C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EF2E6670AC9B5091FE06BE0E5483EAAD6BA32D9
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4C95A9902ABE0777CED18D6ACCC3372D2748381E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4BA7B9DDD68788E12FF852E1A024204BF286A8F6
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4B421F7515F6AE8A6ECEF97F6982A400A4D9224E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47AFB915CDA26D82467B97FA42914468726138DD
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4463C531D7CCC1006794612BB656D3BF8257846F
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\43F9B110D5BAFD48225231B0D0082B372FEF9A54
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\43DDB1FFF3B49B73831407F6BC8B975023D07C50
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\40E78C1D523D1CD9954FAC1A1AB3BD3CBAA15BFC
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4072BA31FEC351438480F62E6CB95508461EAB2F
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\3F85F2BB4A62B0B58BE1614ABB0D4631B4BEF8BA
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\394FF6850B06BE52E51856CC10E180E882B385CC
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\36863563FD5128C7BEA6F005CFE9B43668086CCE
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2F173F7DE99667AFA57AF80AA2D1B12FAC830338
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\284F55C41A1A7A3F8328D4C262FB376ED6096F24
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\273EE12457FDC4F90C55E82B56167F62F532E547
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\24BA6D6C8A5B5837A48DB5FAE919EA675C94D217
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\24A40A1F573643A67F0A4B0749F6A22BF28ABB6B
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\23E594945195F2414803B4D564D2A3A3F5D88B8C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\216B2A29E62A00CE820146D8244141B92511B279
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\209900B63D955728140CD13622D8C687A4EB0085
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F55E8839BAC30728BE7108EDE7B0BB0D3298224
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1331F48A5DA8E01DAACA1BB0C17044ACFEF755BB
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0B77BEBBCB7AA24705DECC0FBD6A02FC7ABD9B52
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\049811056AFE9FD0F5BE01685AACE6A5D1C4454C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0483ED3399AC3608058722EDBC5E4600E3BEF9D7
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\00EA522C8A9C06AA3ECCE0B4FA6CDC21D92E8099
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0048F8D37B153F6EA2798C323EF4F318A5624A9E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application
    • From: Sources = "{random characters}"
      To: Sources = ""{random values}""

Step 5

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\is-5a0s5.tmp\{malware file name}.tmp
  • %User Temp%\is-G8NRG.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-G8NRG.tmp\isa.dll
  • %User Profile%\MetaData\2BF68F4714092295550497DD56F57004
  • %User Profile%\Content\2BF68F4714092295550497DD56F57004
  • %User Profile%\MetaData\94308059B57B3142E455B38A6EB92015
  • %User Profile%\Content\94308059B57B3142E455B38A6EB92015
  • %User Temp%\CabE.tmp
  • %User Temp%\Tar10.tmp
  • %User Profile%\MetaData\74FBF93595CFC8459196065CE54AD928
  • %User Profile%\Content\74FBF93595CFC8459196065CE54AD928
  • %User Profile%\MetaData\34DA60AA966CD9270C5362E6AEF824CF
  • %User Profile%\Content\34DA60AA966CD9270C5362E6AEF824CF
  • %Program Files%\WebBar\unins000.dat
  • %Program Files%\WebBar\is-87PCC.tmp
  • %Program Files%\WebBar\is-HMDL2.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-TSQ5N.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-BS4JB.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-GNRQN.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-U97FN.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-NPVA0.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-78I3O.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-PM2JK.tmp
  • %Program Files%\WebBar\2.0.5749.22382\is-57PF8.tmp
  • %Program Files%\WebBar\is-0R9MO.tmp
  • %Program Files%\WebBar\is-38OEC.tmp
  • %Program Files%\WebBar\is-T1TVR.tmp
  • %Program Files%\WebBar\wbsvc.InstallState
  • %Windows%\Tasks\WebBarLaunchTask.job
  • %Windows%\Tasks\WebBarUpdateTask.job
  • %User Temp%\Cab30.tmp
  • %User Temp%\Tar32.tmp
  • %Application Data%\WebBar\wb.app.settings
  • %Temporary Internet Files%\Content.IE5\WPF43.tmp
  • %User Temp%\Cab45.tmp
  • %User Temp%\Tar47.tmp
  • %Temporary Internet Files%\Content.IE5\WPF4F.tmp
  • %Temporary Internet Files%\Content.IE5\ZDGZNKA5\facebook[1].cache
  • %Temporary Internet Files%\Content.IE5\WPF52.tmp
  • %Temporary Internet Files%\Content.IE5\BVLBNMKH\youtube[1].cache
  • %Temporary Internet Files%\Content.IE5\BVLBNMKH\listen[1].cache
  • %System%\d3d9caps.dat
  • %System%\d3d9caps.tmp

Step 6

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %User Temp%\is-5A0S5.tmp
  • %User Temp%\is-G8NRG.tmp
  • %User Temp%\is-G8NRG.tmp\_isetup
  • %User Profile%\CryptnetUrlCache\MetaData
  • %User Profile%\Microsoft\CryptnetUrlCache
  • %User Profile%\CryptnetUrlCache\Content
  • %Program Files%\WebBar
  • %Program Files%\WebBar\2.0.5749.22382
  • %Application Data%\WebBar

Step 7

Scan your computer with your Trend Micro product to delete files detected as PUA_WEBBAR. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 8

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %Windows%\Tasks\Temp{142c9876-8870-4e87-a46a-271df2b38921}.job
  • %Windows%\Tasks\Temp{8404bee9-d513-4634-87e6-8a05d1dd44e5}.job

Step 9

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • {0BCE8B0A-1E76-44E5-9909-3CF804D92E4D}_is1


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