Analysis by: Roland Marco Dela Paz
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size: Varies
File Type: Other
Memory Resident: Yes
Initial Samples Received Date: 07 Jan 2010

Arrival Details

This Trojan may be dropped by the following malware:

  • BKDR_QBOT/BKDR_QAKBOT family

Other Details

This Trojan does the following:

  • This is Trend Micro's detection for .JOB files that are used by the BKDR_QAKBOT/BKDR_QBOT family as an autostart, in the form of scheduled task.
  • This malware executes the following component of the BKDR_QAKBOT/BKDR_QBOT family:
  • %System%\sconnect.js
  • Thus, malicious routines of the main malware is exhibited on the affected system.

(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: 6.994.12
VSAPI PATTERN Date: 13 Apr 2010
VSAPI PATTERN Date: 4/13/2010 12:00:00 AM
FIRST VSAPI PATTERN FILE: 6.748.05
FIRST VSAPI PATTERN DATE: 07 Jan 2010
VSAPI OPR PATTERN File: 6.995.00
VSAPI OPR PATTERN Date: 13 Apr 2010

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 to delete files detected as TROJ_QBOT.JOB. 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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