TROJ_ADCLICK.TNH
Trojan-Dropper.Agent (Ikarus), Win32/Autoit.NLS trojan (NOD32), Trojan.Agent.AXNI (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: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This malware leverages the recent announcement of changes in Yahoo! Messenger platform.
To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.
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
388,085 bytes
EXE
Yes
05 Dec 2012
Connects to URLs/IPs
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.
Other Details
This Trojan connects to the following URL(s) to check for an Internet connection:
- www.google.com
NOTES:
It searches if there are installed internet browsers such as Google Chrome, Mozilla Firefox and Internet Explorer. If it finds any of the following browsers, it accesses the following URLs using the browser it found:
- http://{BLOCKED}y/2JiIW
- http://31c3f4bd.{BLOCKED}cks.com
These are pay per click sites that enables the malware author to generate profit when users visit these sites.
SOLUTION
9.300
9.572.02
05 Dec 2012
9.573.00
06 Dec 2012
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_ADCLICK.TNH. 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.
Did this description help? Tell us how we did.