TROJ_BLACKMOON.A

This Trojan may be downloaded by other malware/grayware from remote sites.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system. As of this writing, the said sites are inaccessible.

It deletes itself after execution.

Arrival Details

This Trojan may be downloaded by the following malware/grayware from remote sites:

• BKDR_BLACKMOON.A

It may be downloaded from the following remote sites:

• http://www.{BLOCKED}ro.org/file/ad_{number}/test{number}.jpg

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

• http://www.{BLOCKED}oro.org/file/ad_08/kjahq.exe
• http://{BLOCKED}.{BLOCKED}.6.254/ca.php?m={ID}&h=949

It saves the files it downloads using the following names:

• %User Temp%\{random}.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.)

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

As of this writing, the said sites are inaccessible.

Other Details

This Trojan does the following:

• It checks if the default system language is Korean. If not, it will exit and delete itself.

It deletes itself after execution.