TrojanSpy.Win32.NEGASTEAL.DOCHF
RDN/Generic.dx (McAfee); HEUR:Backdoor.Win32.Andromeda.gen (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan Spy 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
Arrival Details
This Trojan Spy 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 Spy creates the following folders:
- %Application Data%\IP
- %Application Data%\IP\pgtIou\instance
- %Application Data%\itemType
- %User Profile%\AppData
- %Application Data%\IP\pgtIou
- %Application Data%\AuthChildForm
- %System Root%\Users
(Note: %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).. %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).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other System Modifications
This Trojan Spy modifies the following file(s):
- %Windows%\win.ini
(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_CLASSES_ROOT\.qsvr
HKEY_CURRENT_USER\jerries
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
${RANDOM_catholicization_2}
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.qsvr
Content Type = "application/x-quadra-server"
HKEY_CURRENT_USER\jerries
UninstallString = "\misinformantporosity"
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\${RANDOM_catholicization_2}
NoRepair = "1"
Dropping Routine
This Trojan Spy drops the following files:
- %Application Data%\IP\pgtIou\instance\fcitx-quickphrase.desc
- %User Temp%\synaptic-categories.png
- %User Temp%\in
- %Application Data%\itemType\jsc.exe
- %User Temp%\waterfall-ticks.js
- %User Temp%\Nullable.sln.cache
- %Application Data%\itemType\configure.xml
- %Application Data%\IP\pgtIou\instance\timert.ph
- %User Temp%\Nullable.sln
- %User Temp%\59.opends60.dll
- %User Temp%\subjectmap.xsd
- %Application Data%\IP\pgtIou\instance\raseapif.h
- %User Temp%\VSMigrationEngineLib.dll
- %User Temp%\openqueue2.gif
- %Application Data%\IP\pgtIou\instance\org.gnome.FileRoller.gschema.xml
- %Application Data%\IP\pgtIou\instance\libsane-tamarack.so.1
- %Application Data%\IP\pgtIou\instance\assemblyname.cs
- %User Temp%\Volost
- %User Temp%\vbu.exe
- %User Temp%\NatDbgDEUI.dll
- %Application Data%\IP\pgtIou\instance\ipeen-zh-TW.xml
- %User Temp%\x-opencl-src.xml
- %User Temp%\EntrustRootCertificationAuthority-G2.pem
- %User Temp%\237.26
- %Application Data%\AuthChildForm\uuidgen.exe
- %Application Data%\IP\pgtIou\instance\serioraw.ko
- %User Temp%\cupfuls.dll
- %User Temp%\zac
- %Application Data%\IP\pgtIou\instance\implsoiwithbtsf02.gif
- %User Temp%\sqldbg.dll
- %Application Data%\itemType\cnt-031.ott
- %Application Data%\IP\pgtIou\instance\xmljan99.gif
- %User Temp%\Aspnetregsql.exe
(Note: %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).. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
This report is generated via an automated analysis system.
SOLUTION
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
Delete this registry key
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_CLASSES_ROOT
- .qsvr
- In HKEY_CURRENT_USER
- jerries
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- ${RANDOM_catholicization_2}
Step 3
Delete this registry value
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\Classes\.qsvr
- Content Type = "application/x-quadra-server"
- In HKEY_CURRENT_USER\jerries
- UninstallString = "\misinformantporosity"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\${RANDOM_catholicization_2}
- NoRepair = "1"
Step 4
Search and delete these components
- %Application Data%\IP\pgtIou\instance\fcitx-quickphrase.desc
- %User Temp%\synaptic-categories.png
- %User Temp%\in
- %Application Data%\itemType\jsc.exe
- %User Temp%\waterfall-ticks.js
- %User Temp%\Nullable.sln.cache
- %Application Data%\itemType\configure.xml
- %Application Data%\IP\pgtIou\instance\timert.ph
- %User Temp%\Nullable.sln
- %User Temp%\59.opends60.dll
- %User Temp%\subjectmap.xsd
- %Application Data%\IP\pgtIou\instance\raseapif.h
- %User Temp%\VSMigrationEngineLib.dll
- %User Temp%\openqueue2.gif
- %Application Data%\IP\pgtIou\instance\org.gnome.FileRoller.gschema.xml
- %Application Data%\IP\pgtIou\instance\libsane-tamarack.so.1
- %Application Data%\IP\pgtIou\instance\assemblyname.cs
- %User Temp%\Volost
- %User Temp%\vbu.exe
- %User Temp%\NatDbgDEUI.dll
- %Application Data%\IP\pgtIou\instance\ipeen-zh-TW.xml
- %User Temp%\x-opencl-src.xml
- %User Temp%\EntrustRootCertificationAuthority-G2.pem
- %User Temp%\237.26
- %Application Data%\AuthChildForm\uuidgen.exe
- %Application Data%\IP\pgtIou\instance\serioraw.ko
- %User Temp%\cupfuls.dll
- %User Temp%\zac
- %Application Data%\IP\pgtIou\instance\implsoiwithbtsf02.gif
- %User Temp%\sqldbg.dll
- %Application Data%\itemType\cnt-031.ott
- %Application Data%\IP\pgtIou\instance\xmljan99.gif
- %User Temp%\Aspnetregsql.exe
Step 5
Search and delete these folders
- %Application Data%\IP
- %Application Data%\IP\pgtIou\instance
- %Application Data%\itemType
- %User Profile%\AppData
- %Application Data%\IP\pgtIou
- %Application Data%\AuthChildForm
- %System Root%\Users
Step 6
Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.NEGASTEAL.DOCHF. 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 7
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.
- %Windows%\win.ini
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