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JS_QAKBOT.SM

October 08, 2012
 Analysis by: Roland Marco Dela Paz
 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 is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

Script

Memory Resident:

No

Initial Samples Received Date:

30 Nov 2010

Payload:

Downloads files

Other Details

This is the Trend Micro detection for:

  • for Javascript files that are dropped by the WORM_QAKBOT/BKDR_QAKBOT family.

It does the following:

  • It is usually dropped by its main component as %Windows%\Temp\{name}.js
    (Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
  • It downloads updated components of its main malware.

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

7.667.00

VSAPI OPR PATTERN Date:

01 Dec 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

Remove malware files dropped/downloaded by JS_QAKBOT.SM

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_QAKBOT.SM. 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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