JS_LOCKY.DLDSANH

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 executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

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 saves the files it downloads using the following names:

• %User Temp%\uwOVIz54cwnFp
• %User Temp%\uwOVIz54cwnFp.dll

(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.)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Other Details

This Trojan connects to the following possibly malicious URL:

• http://{BLOCKED}wang.name/467pbl
• http://{BLOCKED}.{BLOCKED}.104.2/upp0nqa
• http://www.sixpack.{BLOCKED}t.at/n93y3t
• http://{BLOCKED}ron.ch/~se_robel/km51cbxx
• http://www.{BLOCKED}ini.com/xkzd7c
• http://{BLOCKED}.{BLOCKED}.249.203/data/info.php