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Worm.ALS.COPICAD.AA

April 18, 2019
 Analysis by: Arvin Roi Macaraeg
 Modified by: Jay Garcia
 ALIASES:

Worm:ALisp/Copicad.gen!A [generic] (Microsoft), Virus.Acad.Pasdoc.ad (Kaspersky)

 PLATFORM:

Windows

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Worm 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:

20,939 bytes

File Type:

Other

Memory Resident:

No

Initial Samples Received Date:

11 Apr 2019

Arrival Details

This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This Worm does the following:

  • It appends itself to the following files:
    • {folder of base.dcl file}\acaddoc.lsp
    • {folder of drawing file}\acaddoc.lsp

NOTES:
This malware arrives to 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.

It first searches for the file BASE.DCL and looks for ACADDOC.LSP in the same folder where BASE.DCL is located. It also searches for the file ACADDOC.LSP from where the current drawing file is saved. If found, it copies the content of the file to the folder where BASE.DCL is located.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.942.04

FIRST VSAPI PATTERN DATE:

16 Apr 2019

VSAPI OPR PATTERN File:

14.943.00

VSAPI OPR PATTERN Date:

17 Apr 2019

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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 Worm.ALS.COPICAD.AA. 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 the following Trend Micro Support pages for more information:


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