ALS_BURSTED.MJTN
Trojan:ALisp/Neyer.A (Microsoft); ACAD/Downloader (McAfee); AL/Neyer-B (Sophos); HEUR:Trojan.Acad.Generic (Kaspersky)
Windows
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm may arrive bundled with malware packages as a malware component. It 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
Arrival Details
This worm may arrive bundled with malware packages as a malware component.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This worm drops the following files:
- {directory of "acad.dcl"}\acad.fas
- {directory of the current drawing}\acad.fas
- {directory of AutoCAD}\draw.fas
Other Details
This worm connects to the following possibly malicious URL:
- http://{BLOCKED}b.{BLOCKED}dun.com/jbbgxf/?f=xsch
- http://{BLOCKED}b.{BLOCKED}dun.com/err/?errcode=5
SOLUTION
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete these files
- {directory of "acad.dcl"}\acad.fas
- {directory of the current drawing}\acad.fas
- {directory of AutoCAD}\draw.fas
Step 4
Scan your computer with your Trend Micro product to delete files detected as ALS_BURSTED.MJTN. 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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