X2KM_DRIDEX.XCY
TrojanDownloader:O97M/Donoff (Microsoft); Troj/DocDl-YU (Sophos); W97M.Downloader (Symantec); W97M.Downloader.YY (BitDefender)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware, Spammed via email
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
89,600 bytes
XLS
No
27 Aug 2015
Connects to URLs/IPs, Downloads files
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.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- http://{BLOCKED}usicservice.de/43t3f/45y4g.exe
- http://members.{BLOCKED}de.com.au/43t3f/45y4g.exe
It saves the files it downloads using the following names:
- %User Temp%\ruebfo.exe
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Other Details
This is the Trend Micro detection for Microsoft Word documents that are compromised through the insertion of a malicious macro.
SOLUTION
9.750
11.882.04
27 Aug 2015
11.883.00
28 Aug 2015
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 these files
- %User Temp%\ruebfo.exe
Step 3
Scan your computer with your Trend Micro product to delete files detected as X2KM_DRIDEX.XCY. 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.
Step 4
Enable the macro virus protection in Microsoft Office Applications
Did this description help? Tell us how we did.