Analysis by: Christopher Daniel So
ALIASES:

Trojan:Win32/Tilcun.gen!B (Microsoft); Infostealer.Gampass (Symantec); PWS-OnlineGames.br (McAfee); Trojan-GameThief.Win32.OnLineGames.uisc (Kaspersky); Troj/PWS-AVC (Sophos); W32/OnLineGames.BR!tr.pws (Fortinet); Trojan-GameThief.Win32.OnLineGames.spbh (Sunbelt)

 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  TECHNICAL DETAILS

File Size: Varies
File Type: PE
Memory Resident: Yes
Initial Samples Received Date: 11 Aug 2008

Other System Modifications

This Trojan deletes the following files:

  • %System%\Verclsid.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI PATTERN File: 5.502.10
VSAPI PATTERN Date: 28 Aug 2008
VSAPI PATTERN Date: 8/28/2008 12:00:00 AM

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Scan your computer with your Trend Micro product and note files detected as TSPY_ONLINEG.WCR

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete the file detected as TSPY_ONLINEG.WCR

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.

Step 5

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.

  • %System%\Verclsid.exe

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_ONLINEG.WCR. 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.


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