ALS_BURSTED.EM
Virus:ALisp/Bursted.CI(Microsoft), Trojan.ACAD.Bursted.N(FSecure), Trojan.ACAD.Bursted.N(Bitdefender)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Trojan 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
111,787 bytes
LSP
09 Jul 2013
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
NOTES:
This malware locates AutoCAD's current working folder by finding base.dcl and acad.lsp.
It drops a copy of itself in AutoCAD's current working folder as acad.lsp. Once a new drawing file is opened, the dropped copy is automatically loaded and executed.
SOLUTION
9.300
10.144.05
09 Jul 2013
10.145.00
10 Jul 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.EM. 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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