Analysis by: Christopher Daniel So
ALIASES:

Infostealer.Bancos (Symantec), Rootkit.Win32.Banker.cc (Kaspersky)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: Yes

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan 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: 10,112 bytes
File Type: SYS
Memory Resident: Yes
Initial Samples Received Date: 19 Feb 2011

Arrival Details

This Trojan 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 Trojan deletes the following files:

  • C:\Arquivos de programas\Scpad\scpsssh2.dll
  • C:\Arquivos de programas\Scpad\sshib.dll
  • C:\Arquivos de programas\Scpad\scpVista.exe
  • C:\Arquivos de programas\Scpad\scpIBCfg.bin
  • C:\Arquivos de programas\Scpad\scpLIB.dll'
  • C:\Arquivos de programas\Scpad\scpMIB.dll
  • C:\Arquivos de programas\Scpad\sshib.dll
  • C:\Arquivos de programas\gbplugin\gbiehAbn.dll
  • C:\Arquivos de programas\gbplugin\GbpSv.exe
  • C:\Arquivos de programas\gbplugin\abn.gpc
  • C:\Arquivos de programas\gbplugin\gbiehcef.dll
  • C:\Arquivos de programas\gbplugin\gbpdist.dll
  • C:\Arquivos de programas\gbplugin\gbieh.gmd
  • C:\Arquivos de programas\gbplugin\cef.gpc
  • C:\Arquivos de programas\gbplugin\bb.gpc
  • C:\Arquivos de programas\gbplugin\gbieh.dll
  • C:\Arquivos de programas\gbplugin\gbiehuni.dll
  • C:\Arquivos de programas\gbplugin\uni.gpc
  • C:\WINDOWS\Downloaded Program Files\gbiehAbn.dll
  • c:\Arquivos de programas\Avira\AntiVir Desktop\avscan.exe
  • C:\Arquivos de programas\Avira\AntiVir Desktop\update.exe
  • C:\Arquivos de programas\Avira\AntiVir Desktop\update.dll
  • C:\Arquivos de programas\AVG\AVG8\avgscanx.exe
  • C:\Arquivos de programas\AVG\AVG8\avgupd.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\VisthUpd.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\VisthUpd.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\ashLogV.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\aswUpdSv.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\ashWebSv.exe
  • C:\Arquivos de programas\Alwil Software\Avast4\ashUpd.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\VisthUpd.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\AvastUI.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\aswUpdSv.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\AvastSvc.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\ashUpd.exe
  • C:\Arquivos de programas\Alwil Software\Avast5\AvastSvc.exe'
  • C:\WINDOWS\Downloaded Program Files\CONFLICT.1\gbiehAbn.dll'
  • C:\Arquivos de programas\BitDefender\BitDefender 2011\updatesrv.exe'

  SOLUTION

Minimum Scan Engine: 8.900

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 TROJ_BANKER.CKY

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete the file detected as TROJ_BANKER.CKY

[ 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

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


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