TSPY_MGNIA.SMUS1
Backdoor:Win32/Farfli.K (Microsoft); [0000d5f8.EXE]:BackDoor-CKB.gen.q (McAfee); Infostealer.Gampass (Symantec); Trojan-GameThief.Win32.Magania.erjq (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse BackDoor.Farfli.B (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It deletes itself after execution.
TECHNICAL DETAILS
Arrival Details
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Autostart Technique
This spyware registers as a system service to ensure its automatic execution at every system startup by adding the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\.NetSHIssu\Parameters
Other System Modifications
This spyware deletes the following files:
- %Windows%\FuckYou.txt
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\Software\FuckYou
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\MediaResources\msvideo
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\FuckYou
netsvcs = "{random characters}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\.NetSHIssu
Description = "Microsoft .NET and Windows XP COM+ Integration with SOAP"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\.NetSHIssu\Parameters
ServiceDll = "%Windows%\Web\QQCRT.dll"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\.NetSHIssu
InstallModule = "{malware path and file name}"
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\.NetSHIssu
Type = "12"
Dropping Routine
This spyware drops the following files:
- %User Temp%\60187_res.tmp
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Other Details
This spyware deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
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
Restart in Safe Mode
Step 3
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_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\.NetSHIssu
- Parameters
- In HKEY_LOCAL_MACHINE\Software
- FuckYou
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaResources
- msvideo
Step 4
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\FuckYou
- netsvcs = "{random characters}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\.NetSHIssu
- Description = "Microsoft .NET and Windows XP COM+ Integration with SOAP"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\.NetSHIssu\Parameters
- ServiceDll = "%Windows%\Web\QQCRT.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\.NetSHIssu
- InstallModule = "{malware path and file name}"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\.NetSHIssu
- Type = "12"
Step 5
Search and delete this file
- %User Temp%\60187_res.tmp
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_MGNIA.SMUS1. 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 7
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%\FuckYou.txt
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