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ALS_BURSTED.EH

March 22, 2016
 ALIASES:

Virus.Acad.Bursted.b (Kaspersky), Virus.ALS.Bursted (Ikarus), ALS/Bursted.AO virus (NOD32)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes


  TECHNICAL DETAILS

File Size:

Varies

File Type:

LSP

Initial Samples Received Date:

17 Mar 2016

NOTES:

This worm arrives on the system as an AutoLISP script bundled with a .DWG drawing file. Once the drawing file is opened, AutoCAD then loads and executes this malware.

Upon execution, it loads a certain AutoLISP script, acadapq.lsp. If the folder where the file base.dcl does not contain acaddoc.lsp it copies itself to the folder where the file base.dcl is, as acadiso.lsp. If the folder where the current drawing file exists does not contain acadiso.lsp, it copies itself to the folder where the current drawing file is aacadiso.lsp.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

9.946.04

FIRST VSAPI PATTERN DATE:

28 May 2013

VSAPI OPR PATTERN File:

9.947.00

VSAPI OPR PATTERN Date:

29 May 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as ALS_BURSTED.EH. 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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