TROJ_BANKER.JBR

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It 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. As of this writing, the said sites are inaccessible.

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops the following non-malicious file:

• %Windows%\Win_pwr.pdf

(Note: %Windows% is the Windows folder, which is usually C:\Windows.)

Download Routine

This Trojan accesses the following websites to download files:

• https://som.{BLOCKED}e.com/h-s-internal/20130128/f3487f359b38436f
• https://som.{BLOCKED}e.com/h-s-internal/20130128/d3669545621045d9

It saves the files it downloads using the following names:

• %Windows%\WIDEAWAKE1.zip
• %Windows%\WIDEAWAKE3.zip

(Note: %Windows% is the Windows folder, which is usually C:\Windows.)

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.

NOTES:

This Trojan is signed with a real and valid digital certificate issued by DigiCert to trick users into thinking that it is legitimate.