Analysis by: Christopher Daniel So
ALIASES:

Trojan.Bamital.B!inf (Symantec), Trojan.Win32.Patched.lk (Kaspersky), Trojan.Win32.Patched.lp (Kaspersky), Win32/Patched.GN trojan (Nod32), Troj/Patched-Y (Sophos)

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan is used to load and execute a file.

  TECHNICAL DETAILS

File Size: Varies
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 22 Jan 2011

Arrival Details

This malware arrives via the following means:

  • It is a file patched by TROJ_BAMITAL.QUE.

Other Details

This Trojan is used to load and execute the following file:

  • nt.dll - detected as TROJ_BAMITAL.SMY

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI PATTERN File: 7.786.07
VSAPI PATTERN Date: 22 Jan 2011
VSAPI PATTERN Date: 1/22/2011 12:00:00 AM

Step 1

DAMAGE CLEANUP TEMPLATE

Step 2

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 3

Scan your computer with your Trend Micro product to clean files detected as PTCH_BAMITAL.SMX. 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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