Worm.Win32.COSMU.AE


 ALIASES:

Worm:Win32/Sovfo.A (Microsoft); Trojan-FEKK!5B3BFD893FAA (McAfee); Trojan.Festalco (Symantec); Trojan.Win32.Cosmu.cdqg (Kaspersky); Mal/VB-ALT (Sophos); Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Worm 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:

143,360 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

09 Jan 2020

Arrival Details

This Worm 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 Worm adds the following processes:

  • %User Profile%\bIL4qw1.exe
  • http://www.{BLOCKED}ronproject.site11.com/post.php?files=%Desktop%\Transmag; %Desktop%\excel2k\XLS2KE00; %Desktop%\excel2k\XLS2KE01; %Desktop%\excel2k\XLS2KE02; %Desktop%\excel2k\XLS2KE03; %Desktop%\excel2k\XLS2KE04; %Desktop%\excel2k\XLS2KE05; %Desktop%\excel2k\XLS2KExx; %Desktop%\powerpoint2k\PPT2KE00; %Desktop%\powerpoint2k\PPT2KE01; %Desktop%\powerpoint2k\PPT2KE02; %Desktop%\powerpoint2k\PPT2KE03; %Desktop%\powerpoint2k\PPT2KE04; %Desktop%\powerpoint2k\PPT2KE05; %Desktop%\powerpoint2k\PPT2KExx; %Desktop%\word2k\DOC2KE00; %Desktop%\word2k\DOC2KE01; %Desktop%\word2k\DOC2KE02; %Desktop%\word2k\DOC2KE03; %Desktop%\word2k\DOC2KE04; %Desktop%\word2k\DOC2KE05; %Desktop%\word2k\DOC2KExx; &user={username}&machine={computername}&datetime=08-07-2019*14:27:07
  • http://www.{BLOCKED}ronproject.site11.com/post.php?files=%Desktop%\Transmag; %Desktop%\excel2k\XLS2KE00; %Desktop%\excel2k\XLS2KE01; %Desktop%\excel2k\XLS2KE02; %Desktop%\excel2k\XLS2KE03; %Desktop%\excel2k\XLS2KE04; %Desktop%\excel2k\XLS2KE05; %Desktop%\excel2k\XLS2KExx; %Desktop%\powerpoint2k\PPT2KE00; %Desktop%\powerpoint2k\PPT2KE01; %Desktop%\powerpoint2k\PPT2KE02; %Desktop%\powerpoint2k\PPT2KE03; %Desktop%\powerpoint2k\PPT2KE04; %Desktop%\powerpoint2k\PPT2KE05; %Desktop%\powerpoint2k\PPT2KExx; %Desktop%\word2k\DOC2KE00; %Desktop%\word2k\DOC2KE01; %Desktop%\word2k\DOC2KE02; %Desktop%\word2k\DOC2KE03; %Desktop%\word2k\DOC2KE04; %Desktop%\word2k\DOC2KE05; %Desktop%\word2k\DOC2KExx; %User Profile%\Documents\excel2k\XLS2KE00; %User Profile%\Documents\excel2k\XLS2KE01; %User Profile%\Documents\excel2k\XLS2KE02; %User Profile%\Documents\excel2k\XLS2KE03; %User Profile%\Documents\excel2k\XLS2KE04; %User Profile%\Documents\excel2k\XLS2KE05; %User Profile%\Documents\excel2k\XLS2KExx; %User Profile%\Documents\powerpoint2k\PPT2KE00; %User Profile%\Documents\powerpoint2k\PPT2KE01; %User Profile%\Documents\powerpoint2k\PPT2KE02; %User Profile%\Documents\powerpoint2k\PPT2KE03; %User Profile%\Documents\powerpoint2k\PPT2KE04; %User Profile%\Documents\powerpoint2k\PPT2KE05; %User Profile%\Documents\powerpoint2k\PPT2KExx; %User Profile%\Documents\word2k\DOC2KE00; %User Profile%\Documents\word2k\DOC2KE01; %User Profile%\Documents\word2k\DOC2KE02; %User Profile%\Documents
  • http://www.{BLOCKED}ronproject.site11.com/post.php?files=%Desktop%\Transmag; %Desktop%\excel2k\XLS2KE00; %Desktop%\excel2k\XLS2KE01; %Desktop%\excel2k\XLS2KE02; %Desktop%\excel2k\XLS2KE03; %Desktop%\excel2k\XLS2KE04; %Desktop%\excel2k\XLS2KE05; %Desktop%\excel2k\XLS2KExx; %Desktop%\powerpoint2k\PPT2KE00; %Desktop%\powerpoint2k\PPT2KE01; %Desktop%\powerpoint2k\PPT2KE02; %Desktop%\powerpoint2k\PPT2KE03; %Desktop%\powerpoint2k\PPT2KE04; %Desktop%\powerpoint2k\PPT2KE05; %Desktop%\powerpoint2k\PPT2KExx; %Desktop%\word2k\DOC2KE00; %Desktop%\word2k\DOC2KE01; %Desktop%\word2k\DOC2KE02; %Desktop%\word2k\DOC2KE03; %Desktop%\word2k\DOC2KE04; %Desktop%\word2k\DOC2KE05; %Desktop%\word2k\DOC2KExx; %User Profile%\Documents\excel2k\XLS2KE00; %User Profile%\Documents\excel2k\XLS2KE01; %User Profile%\Documents\excel2k\XLS2KE02; %User Profile%\Documents\excel2k\XLS2KE03; %User Profile%\Documents\excel2k\XLS2KE04; %User Profile%\Documents\excel2k\XLS2KE05; %User Profile%\Documents\excel2k\XLS2KExx; %User Profile%\Documents\powerpoint2k\PPT2KE00; %User Profile%\Documents\powerpoint2k\PPT2KE01; %User Profile%\Documents\powerpoint2k\PPT2KE02; %User Profile%\Documents\powerpoint2k\PPT2KE03; %User Profile%\Documents\powerpoint2k\PPT2KE04; %User Profile%\Documents\powerpoint2k\PPT2KE05; %User Profile%\Documents\powerpoint2k\PPT2KExx; %User Profile%\Documents\word2k\DOC2KE00; %User Profile%\Documents\word2k\DOC2KE01; %User Profile%\Documents\word2k\DOC2KE02; %User Profile%\Documents\word2k\DOC2KE03; %User Profile%\Documents\word2k\DOC2KE04; %User Profile%\Documents\word2k\DOC2KE05; %User Profile%\Documents\word2k\DOC2KExx; &user={username}&machine={computername}&datetime=08-07-2019*14:28:01
  • "%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2964 CREDAT:275457 /prefetch:2
  • "%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2964 CREDAT:1586210 /prefetch:2
  • "%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:312 CREDAT:275457 /prefetch:2

It creates the following folders:

  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
  • %Application Data%\Microsoft\Windows\IECompatUACache
  • %AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions
  • %Application Data%\Microsoft\Windows\IECompatCache
  • %Application Data%\Microsoft\Windows\DNTException
  • %Application Data%\Microsoft\Windows\PrivacIE

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other System Modifications

This Worm modifies the following file(s):

  • %Desktop%\word2k\DOC2KE04.doc
  • %User Profile%\Documents\word2k\DOC2KE00.dot
  • %User Profile%\Documents\excel2k\XLS2KE02.xls
  • %Desktop%\powerpoint2k\PPT2KE00.pot
  • %User Profile%\Documents\excel2k\XLS2KE04.xls
  • %User Profile%\Documents\word2k\DOC2KE01.doc
  • %User Profile%\Documents\excel2k\XLS2KE03.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE01.ppt
  • %Desktop%\powerpoint2k\PPT2KE01.ppt
  • %Desktop%\excel2k\XLS2KE03.xls
  • %User Profile%\Documents\excel2k\XLS2KExx.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\Transmag.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE03.ppt
  • %Desktop%\excel2k\XLS2KExx.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE00.pot
  • %Desktop%\excel2k\XLS2KE04.xls
  • %Desktop%\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\word2k\DOC2KExx.doc
  • %User Profile%\Documents\word2k\DOC2KE03.doc
  • %Desktop%\word2k\DOC2KE03.doc
  • %Desktop%\powerpoint2k\PPT2KE05.ppt
  • %User Profile%\Documents\excel2k\XLS2KE05.xls
  • %User Profile%\Documents\word2k\DOC2KE04.doc
  • %User Profile%\Documents\word2k\DOC2KExx.doc
  • %Desktop%\word2k\DOC2KE01.doc
  • %Desktop%\word2k\DOC2KE05.doc
  • %Desktop%\powerpoint2k\PPT2KExx.PPT
  • %User Profile%\Documents\excel2k\XLS2KE00.xlt
  • %Desktop%\excel2k\XLS2KE02.xls
  • %Desktop%\word2k\DOC2KE02.doc
  • %User Profile%\Documents\excel2k\XLS2KE01.xls
  • %Desktop%\excel2k\XLS2KE01.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE04.ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE05.ppt
  • %Desktop%\excel2k\XLS2KE05.xls
  • %Desktop%\powerpoint2k\PPT2KE04.ppt
  • %Desktop%\excel2k\XLS2KE00.xlt
  • %Desktop%\word2k\DOC2KE00.dot
  • %User Profile%\Documents\powerpoint2k\PPT2KExx.PPT
  • %Desktop%\powerpoint2k\PPT2KE03.ppt
  • %User Profile%\Documents\word2k\DOC2KE05.doc
  • %User Profile%\Documents\word2k\DOC2KE02.doc

(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It deletes the following files:

  • %AppDataLocal%Low\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
String\Strings

It adds the following registry entries:

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
String\Strings
String = "1"

Dropping Routine

This Worm drops the following files:

  • %Desktop%\word2k\DOC2KE04.doc
  • %User Profile%\Documents\excel2k\XLS2KE02(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE00.dot
  • %User Profile%\Documents\excel2k\XLS2KE02.xls
  • %Desktop%\word2k\DOC2KExx(fEstasAzulCorrupta).doc
  • %Desktop%\powerpoint2k\PPT2KE00.pot
  • %User Profile%\Documents\excel2k\XLS2KE04.xls
  • %User Profile%\Documents\excel2k\XLS2KE03.xls
  • %Desktop%\excel2k\XLS2KExx(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KE03(fEstasAzulCorrupta).xls
  • %Desktop%\powerpoint2k\PPT2KE04(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE01(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\Transmag.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE03.ppt
  • %Desktop%\excel2k\XLS2KE04.xls
  • %Desktop%\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\word2k\DOC2KExx.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE02(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\word2k\DOC2KE03(fEstasAzulCorrupta).doc
  • %Desktop%\word2k\DOC2KE01(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE04(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE01(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\excel2k\XLS2KE03(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KExx.doc
  • %Desktop%\word2k\DOC2KE01.doc
  • %User Profile%\Documents\excel2k\XLS2KE04(fEstasAzulCorrupta).xls
  • A:\Hot fotos.exe
  • %Desktop%\excel2k\XLS2KE02.xls
  • A:\My Musik(2013).exe
  • %Desktop%\word2k\DOC2KE02.doc
  • %Desktop%\powerpoint2k\PPT2KE03(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\excel2k\XLS2KE01.xls
  • %User Profile%\Documents\excel2k\XLS2KE00(fEstasAzulCorrupta).xlt
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{DBD95D65-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %AppDataLocal%\Microsoft\Internet Explorer\MSIMGSIZ.DAT
  • %Desktop%\word2k\DOC2KE00(fEstasAzulCorrupta).dot
  • %Desktop%\excel2k\XLS2KE05(fEstasAzulCorrupta).xls
  • D:\Hot fotos.exe
  • %User Profile%\Documents\excel2k\XLS2KE01(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE03(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE02(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE03.ppt
  • %User Profile%\Start Menu\Programs\Startup\n6YptO3.lnk
  • %User Profile%\Documents\word2k\DOC2KE02.doc
  • %Desktop%\powerpoint2k\PPT2KExx(fEstasAzulCorrupta).PPT
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{DBD95D63-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{BBC878A4-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %User Profile%\Documents\word2k\DOC2KE01.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE05(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE01.ppt
  • %Desktop%\powerpoint2k\PPT2KE01.ppt
  • D:\My Musik(2013).exe
  • %Desktop%\powerpoint2k\PPT2KE05(fEstasAzulCorrupta).ppt
  • %Desktop%\excel2k\XLS2KE01(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KE03.xls
  • %User Profile%\Documents\excel2k\XLS2KExx.xls
  • %Desktop%\word2k\DOC2KE04(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\excel2k\XLS2KE05(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\excel2k\XLS2KExx(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KExx.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE00.pot
  • %Desktop%\Transmag(fEstasAzulCorrupta).doc
  • %Desktop%\excel2k\XLS2KE02(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE03.doc
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{BBC878A2-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %User Profile%\Documents\word2k\DOC2KE00(fEstasAzulCorrupta).dot
  • %Desktop%\excel2k\XLS2KE04(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE01(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\powerpoint2k\PPT2KExx(fEstasAzulCorrupta).PPT
  • %User Profile%\Documents\excel2k\XLS2KE05.xls
  • %Desktop%\powerpoint2k\PPT2KE05.ppt
  • %Desktop%\word2k\DOC2KE03.doc
  • %User Profile%\Documents\word2k\DOC2KE04.doc
  • %Desktop%\excel2k\XLS2KE00(fEstasAzulCorrupta).xlt
  • %Desktop%\word2k\DOC2KE05.doc
  • %User Profile%\Documents\word2k\DOC2KE04(fEstasAzulCorrupta).doc
  • %Desktop%\powerpoint2k\PPT2KExx.PPT
  • %Desktop%\word2k\DOC2KE05(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\excel2k\XLS2KE00.xlt
  • %Desktop%\word2k\DOC2KE02(fEstasAzulCorrupta).doc
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{E6AE076C-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %Desktop%\excel2k\XLS2KE01.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE04.ppt
  • %Desktop%\powerpoint2k\PPT2KE00(fEstasAzulCorrupta).pot
  • %User Profile%\Documents\powerpoint2k\PPT2KE00(fEstasAzulCorrupta).pot
  • %User Profile%\Documents\powerpoint2k\PPT2KE05.ppt
  • %Desktop%\word2k\DOC2KE03(fEstasAzulCorrupta).doc
  • %Desktop%\excel2k\XLS2KE05.xls
  • %Desktop%\powerpoint2k\PPT2KE04.ppt
  • %Desktop%\excel2k\XLS2KE00.xlt
  • %User Profile%\Documents\word2k\DOC2KE02(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\word2k\DOC2KE05(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\word2k\DOC2KExx(fEstasAzulCorrupta).doc
  • %AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions\en-US.6
  • %AppDataLocal%\Microsoft\Internet Explorer\imagestore\joppu72\imagestore.dat
  • %User Profile%\Documents\powerpoint2k\PPT2KExx.PPT
  • %Desktop%\word2k\DOC2KE00.dot
  • %User Profile%\Documents\word2k\DOC2KE05.doc
  • %System Root%\My Musik(2013).exe
  • %User Profile%\bIL4qw1.exe
  • %System Root%\Hot fotos.exe
  • F:\My Musik(2013).exe
  • F:\Hot fotos.exe

(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other Details

This Worm connects to the following possibly malicious URL:

  • http://www.{BLOCKED}ronproject.site11.com/post.php?{random characters}
  • http://go.{BLOCKED}oft.com
  • http://api.{BLOCKED}g.com
  • http://www.{BLOCKED}g.com
  • http://www.{BLOCKED}host.com
  • http://fonts.{BLOCKED}apis.com
  • http://apis.{BLOCKED}e.com
  • http://{BLOCKED}t.page
  • http://www.{BLOCKED}-analytics.com
  • http://www.{BLOCKED}tagmanager.com
  • http://connect.{BLOCKED}ok.net
  • http://netdna.{BLOCKED}rapcdn.com
  • http://ieonline.{BLOCKED}oft.com
  • http://sqm.{BLOCKED}try.microsoft.com

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.850

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Identify and terminate files detected as Worm.Win32.COSMU.AE

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

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_CURRENT_USER\Software\VB and VBA Program Settings\String
    • Strings

Step 4

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_CURRENT_USER\Software\VB and VBA Program Settings\String\Strings
    • String = "1"

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.
  • %Desktop%\word2k\DOC2KE04.doc
  • %User Profile%\Documents\excel2k\XLS2KE02(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE00.dot
  • %User Profile%\Documents\excel2k\XLS2KE02.xls
  • %Desktop%\word2k\DOC2KExx(fEstasAzulCorrupta).doc
  • %Desktop%\powerpoint2k\PPT2KE00.pot
  • %User Profile%\Documents\excel2k\XLS2KE04.xls
  • %User Profile%\Documents\excel2k\XLS2KE03.xls
  • %Desktop%\excel2k\XLS2KExx(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KE03(fEstasAzulCorrupta).xls
  • %Desktop%\powerpoint2k\PPT2KE04(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE01(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\Transmag.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE03.ppt
  • %Desktop%\excel2k\XLS2KE04.xls
  • %Desktop%\powerpoint2k\PPT2KE02.ppt
  • %Desktop%\word2k\DOC2KExx.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE02(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\word2k\DOC2KE03(fEstasAzulCorrupta).doc
  • %Desktop%\word2k\DOC2KE01(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE04(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE01(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\excel2k\XLS2KE03(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KExx.doc
  • %Desktop%\word2k\DOC2KE01.doc
  • %User Profile%\Documents\excel2k\XLS2KE04(fEstasAzulCorrupta).xls
  • A:\Hot fotos.exe
  • %Desktop%\excel2k\XLS2KE02.xls
  • A:\My Musik(2013).exe
  • %Desktop%\word2k\DOC2KE02.doc
  • %Desktop%\powerpoint2k\PPT2KE03(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\excel2k\XLS2KE01.xls
  • %User Profile%\Documents\excel2k\XLS2KE00(fEstasAzulCorrupta).xlt
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{DBD95D65-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %AppDataLocal%\Microsoft\Internet Explorer\MSIMGSIZ.DAT
  • %Desktop%\word2k\DOC2KE00(fEstasAzulCorrupta).dot
  • %Desktop%\excel2k\XLS2KE05(fEstasAzulCorrupta).xls
  • D:\Hot fotos.exe
  • %User Profile%\Documents\excel2k\XLS2KE01(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE03(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE02(fEstasAzulCorrupta).ppt
  • %Desktop%\powerpoint2k\PPT2KE03.ppt
  • %User Profile%\Start Menu\Programs\Startup\n6YptO3.lnk
  • %User Profile%\Documents\word2k\DOC2KE02.doc
  • %Desktop%\powerpoint2k\PPT2KExx(fEstasAzulCorrupta).PPT
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{DBD95D63-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{BBC878A4-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %User Profile%\Documents\word2k\DOC2KE01.doc
  • %User Profile%\Documents\powerpoint2k\PPT2KE05(fEstasAzulCorrupta).ppt
  • %User Profile%\Documents\powerpoint2k\PPT2KE01.ppt
  • %Desktop%\powerpoint2k\PPT2KE01.ppt
  • D:\My Musik(2013).exe
  • %Desktop%\powerpoint2k\PPT2KE05(fEstasAzulCorrupta).ppt
  • %Desktop%\excel2k\XLS2KE01(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KE03.xls
  • %User Profile%\Documents\excel2k\XLS2KExx.xls
  • %Desktop%\word2k\DOC2KE04(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\excel2k\XLS2KE05(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\excel2k\XLS2KExx(fEstasAzulCorrupta).xls
  • %Desktop%\excel2k\XLS2KExx.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE00.pot
  • %Desktop%\Transmag(fEstasAzulCorrupta).doc
  • %Desktop%\excel2k\XLS2KE02(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE03.doc
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{BBC878A2-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %User Profile%\Documents\word2k\DOC2KE00(fEstasAzulCorrupta).dot
  • %Desktop%\excel2k\XLS2KE04(fEstasAzulCorrupta).xls
  • %User Profile%\Documents\word2k\DOC2KE01(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\powerpoint2k\PPT2KExx(fEstasAzulCorrupta).PPT
  • %User Profile%\Documents\excel2k\XLS2KE05.xls
  • %Desktop%\powerpoint2k\PPT2KE05.ppt
  • %Desktop%\word2k\DOC2KE03.doc
  • %User Profile%\Documents\word2k\DOC2KE04.doc
  • %Desktop%\excel2k\XLS2KE00(fEstasAzulCorrupta).xlt
  • %Desktop%\word2k\DOC2KE05.doc
  • %User Profile%\Documents\word2k\DOC2KE04(fEstasAzulCorrupta).doc
  • %Desktop%\powerpoint2k\PPT2KExx.PPT
  • %Desktop%\word2k\DOC2KE05(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\excel2k\XLS2KE00.xlt
  • %Desktop%\word2k\DOC2KE02(fEstasAzulCorrupta).doc
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{E6AE076C-B8F2-11E9-9BE8-005056BC7F0D}.dat
  • %Desktop%\excel2k\XLS2KE01.xls
  • %User Profile%\Documents\powerpoint2k\PPT2KE04.ppt
  • %Desktop%\powerpoint2k\PPT2KE00(fEstasAzulCorrupta).pot
  • %User Profile%\Documents\powerpoint2k\PPT2KE00(fEstasAzulCorrupta).pot
  • %User Profile%\Documents\powerpoint2k\PPT2KE05.ppt
  • %Desktop%\word2k\DOC2KE03(fEstasAzulCorrupta).doc
  • %Desktop%\excel2k\XLS2KE05.xls
  • %Desktop%\powerpoint2k\PPT2KE04.ppt
  • %Desktop%\excel2k\XLS2KE00.xlt
  • %User Profile%\Documents\word2k\DOC2KE02(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\word2k\DOC2KE05(fEstasAzulCorrupta).doc
  • %User Profile%\Documents\word2k\DOC2KExx(fEstasAzulCorrupta).doc
  • %AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions\en-US.6
  • %AppDataLocal%\Microsoft\Internet Explorer\imagestore\joppu72\imagestore.dat
  • %User Profile%\Documents\powerpoint2k\PPT2KExx.PPT
  • %Desktop%\word2k\DOC2KE00.dot
  • %User Profile%\Documents\word2k\DOC2KE05.doc
  • %System Root%\My Musik(2013).exe
  • %User Profile%\bIL4qw1.exe
  • %System Root%\Hot fotos.exe
  • F:\My Musik(2013).exe
  • F:\Hot fotos.exe

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.
  • %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
  • %Application Data%\Microsoft\Windows\IECompatUACache
  • %AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions
  • %Application Data%\Microsoft\Windows\IECompatCache
  • %Application Data%\Microsoft\Windows\DNTException
  • %Application Data%\Microsoft\Windows\PrivacIE

Step 7

Scan your computer with your Trend Micro product to delete files detected as Worm.Win32.COSMU.AE. 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 the following Trend Micro Support pages for more information:

Step 8

Restore deleted/modified files and/or registry entries from backup

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

    • %Desktop%\word2k\DOC2KE04.doc
    • %User Profile%\Documents\word2k\DOC2KE00.dot
    • %User Profile%\Documents\excel2k\XLS2KE02.xls
    • %Desktop%\powerpoint2k\PPT2KE00.pot
    • %User Profile%\Documents\excel2k\XLS2KE04.xls
    • %User Profile%\Documents\word2k\DOC2KE01.doc
    • %User Profile%\Documents\excel2k\XLS2KE03.xls
    • %User Profile%\Documents\powerpoint2k\PPT2KE01.ppt
    • %Desktop%\powerpoint2k\PPT2KE01.ppt
    • %Desktop%\excel2k\XLS2KE03.xls
    • %User Profile%\Documents\excel2k\XLS2KExx.xls
    • %User Profile%\Documents\powerpoint2k\PPT2KE02.ppt
    • %Desktop%\Transmag.doc
    • %User Profile%\Documents\powerpoint2k\PPT2KE03.ppt
    • %Desktop%\excel2k\XLS2KExx.xls
    • %User Profile%\Documents\powerpoint2k\PPT2KE00.pot
    • %Desktop%\excel2k\XLS2KE04.xls
    • %Desktop%\powerpoint2k\PPT2KE02.ppt
    • %Desktop%\word2k\DOC2KExx.doc
    • %User Profile%\Documents\word2k\DOC2KE03.doc
    • %Desktop%\word2k\DOC2KE03.doc
    • %Desktop%\powerpoint2k\PPT2KE05.ppt
    • %User Profile%\Documents\excel2k\XLS2KE05.xls
    • %User Profile%\Documents\word2k\DOC2KE04.doc
    • %User Profile%\Documents\word2k\DOC2KExx.doc
    • %Desktop%\word2k\DOC2KE01.doc
    • %Desktop%\word2k\DOC2KE05.doc
    • %Desktop%\powerpoint2k\PPT2KExx.PPT
    • %User Profile%\Documents\excel2k\XLS2KE00.xlt
    • %Desktop%\excel2k\XLS2KE02.xls
    • %Desktop%\word2k\DOC2KE02.doc
    • %User Profile%\Documents\excel2k\XLS2KE01.xls
    • %Desktop%\excel2k\XLS2KE01.xls
    • %User Profile%\Documents\powerpoint2k\PPT2KE04.ppt
    • %User Profile%\Documents\powerpoint2k\PPT2KE05.ppt
    • %Desktop%\excel2k\XLS2KE05.xls
    • %Desktop%\powerpoint2k\PPT2KE04.ppt
    • %Desktop%\excel2k\XLS2KE00.xlt
    • %Desktop%\word2k\DOC2KE00.dot
    • %User Profile%\Documents\powerpoint2k\PPT2KExx.PPT
    • %Desktop%\powerpoint2k\PPT2KE03.ppt
    • %User Profile%\Documents\word2k\DOC2KE05.doc
    • %User Profile%\Documents\word2k\DOC2KE02.doc

Step 9

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.

  • %AppDataLocal%Low\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico


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