W97M_DLOADR.PLJ
TrojanDownloader:W97M/Ledod (Microsoft); Trojan-Downloader.MSWord.Agent.cc (Kaspersky); W97M/Downloader (McAfee); W97M.Downloader (Symantec); Troj/DocDl-BC (Sophos)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
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 does not have any propagation routine.
It does not have any backdoor routine.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
It does not have any information-stealing capability.
TECHNICAL DETAILS
64,000 bytes
DOC
22 Oct 2014
Connects to URLs/IPs, Steals information
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.
Propagation
This Trojan does not have any propagation routine.
Backdoor Routine
This Trojan does not have any backdoor routine.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- http://www.{BLOCKED}larsa.com.ar/images/1.exe
It saves the files it downloads using the following names:
- %User Temp%\VGOMMYAIMDT.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.)
Trend Micro detects the dowloaded file as:
- TROJ_DRIDEX.JCS
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Information Theft
This Trojan does not have any information-stealing capability.
Other Details
This is the Trend Micro detection for Microsoft Word documents that are compromised through the insertion of a malicious macro.
NOTES:
It does not have rootkit capabilities.
It does not exploit any vulnerability.
SOLUTION
9.700
11.282.07
18 Nov 2014
11.283.00
18 Nov 2014
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
Remove malware/grayware files dropped/downloaded by W97M_DLOADR.PLJ. (Note: Please skip this step if the threats listed below have already been removed.)
- TROJ_DRIDEX.JCS
Step 4
Search and delete these files
- %User Temp%\VGOMMYAIMDT.exe
Step 5
Scan your computer with your Trend Micro product to delete files detected as W97M_DLOADR.PLJ. 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 6
Enable the macro virus protection in Microsoft Office Applications
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