TROJ_DLDR.USR
VirTool:Win32/CeeInject (Microsoft), Win32.Malware!Drop (Sunbelt), W32/Injector.AFKG (Fortinet), Trojan.SuspectCRC (Ikarus), Win32/Injector.AFKG trojan (ESET)
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: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Trojan executes then deletes itself afterward.
As of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
40,968 bytes
EXE
No
18 Apr 2013
Downloads files
Arrival Details
This Trojan may be unknowingly downloaded by a user while visiting the following malicious websites:
- http://{BLOCKED}.{BLOCKED}.123.44/news.html
Installation
This Trojan executes then deletes itself afterward.
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- Xi3FVneIx
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- http://{BLOCKED}dgemarathon.com/z.htm?qxH5FATQhit2PzMD9U2vdeD7mEplE
- http://{BLOCKED}kfatcatclassic.com/j.htm?zEwt7oQAM6GxrAWDwEnlp1MMjr
- http://{BLOCKED}erryonthe.net/j.htm?gJhlRcwdShaLpxHgZKhje3biMeiWXi1
- http://{BLOCKED}i.com/n.htm?DedORNjwGH5xYyhqSMqebHkaXLhakJruUu KY1j
- http://{BLOCKED}nrecordings.com/i.htm?1wDg6bS8MzvoprjDTFHphg7wwLPVZ
As of this writing, the said sites are inaccessible.
NOTES:
It pings the host 192.168.123.254.
SOLUTION
9.300
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 TROJ_DLDR.USR. 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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