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TSPY_GAMETHI.DL

October 13, 2012
 ALIASES:

Trojan:Win32/Sisproc (Microsoft); Generic.tfr!p (McAfee); Trojan.Gen.2 (Symantec); Trojan-Downloader.Win32.Agent.tgjy (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan.Generic.6098255 (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • 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

File Size:

563,200 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

06 Jul 2012

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.

Other System Modifications

This spyware deletes the following files:

  • {malware path and file name}.bat

It adds the following registry keys:

HKEY_USERS\S-1-5-21-4025279379-4087772427-2915903831-500\Software\
CodiGirls

It adds the following registry entries:

HKEY_CURRENT_USER\Software\CodiGirls
uid = "c03"

Dropping Routine

This spyware drops the following files:

  • %Windows%\cgico.ico
  • %Desktop%\??????? ?????.lnk
  • %Windows%\cgman_48_1.ico
  • %Desktop%\???? ??1% ???????.lnk
  • %Windows%\cgman_16_1.ico
  • {malware path and file name}sd.bat

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.. %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.)

Other Details

This spyware deletes itself after execution.

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

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

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_USERS\S-1-5-21-4025279379-4087772427-2915903831-500\Software
    • CodiGirls

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_CURRENT_USER\Software\CodiGirls
    • uid = "c03"

Step 4

Search and delete these files

[ Learn More ]
There may be some component files 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.
  • %Windows%\cgico.ico
  • %Desktop%\??????? ?????.lnk
  • %Windows%\cgman_48_1.ico
  • %Desktop%\???? ??1% ???????.lnk
  • %Windows%\cgman_16_1.ico
  • {malware path and file name}sd.bat

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_GAMETHI.DL. 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 6

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.

  • {malware path and file name}.bat


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