TROJ_BANKER.JBR
Trojan-Banker.Win32.Banker.bpfl (Kaspersky), Trj/Banker.KEZ (Panda)
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
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.
TECHNICAL DETAILS
1,473,344 bytes
EXE
No
06 Feb 2013
Connects to URLs/IPs
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.
SOLUTION
9.300
9.712.01
07 Feb 2013
9.713.00
08 Feb 2013
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
Search and delete these files
- %Windows%\Win_pwr.pdf
- %Windows%\WIDEAWAKE1.zip
- %Windows%\WIDEAWAKE3.zip
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_BANKER.JBR. 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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