- Threat Encyclopedia
- Malware
- TROJ_ACTIFF.A
Exploit:Win32/CVE-2013-3906 (Microsoft); Trojan.Mdropper (Symantec)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Downloaded from the Internet
This malware is involved in the targeted attacks that took advantage of an unpatched Microsoft Office vulnerability, namely CVE-2013-3906, on November 2013. Victims of this malware may find the security of their systems compromised.
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.
It takes advantage of software vulnerabilities in certain software to drop malicious files.
370,287 bytes
DOCX
06 Nov 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.
Dropping Routine
This Trojan takes advantage of unknown vulnerabilities in the following software to drop malicious files:
It takes advantage of the following software vulnerabilities to drop malicious files:
Other Details
More information on this vulnerability can be found below:
9.200
10.394.05
06 Nov 2013
10.395.00
06 Nov 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
Search and delete this file
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_ACTIFF.A. 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.
NOTES:
Download Fix-it Tool released by vendor to temporarily address the issue: