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JAVA_JACKSBOT.BD

October 14, 2014
 Analysis by: Adrian Cofreros
 ALIASES:

Backdoor:Java/Jacksbot.A(Microsoft),HEUR:Backdoor.Java.Generic(Kaspersky)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This backdoor 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 requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

Java Class, JAR

Memory Resident:

Yes

Initial Samples Received Date:

26 Sep 2014

Arrival Details

This backdoor 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.

Other Details

This backdoor requires its main component to successfully perform its intended routine.

NOTES:

The dropped file in %User Temp% and the URL connection depends on the parameters passed to its components.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

11.174.02

FIRST VSAPI PATTERN DATE:

27 Sep 2014

VSAPI OPR PATTERN File:

11.175.00

VSAPI OPR PATTERN Date:

28 Sep 2014

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Scan your computer with your Trend Micro product and note files detected as JAVA_JACKSBOT.BD

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Search and delete the file detected as JAVA_JACKSBOT.BD

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as JAVA_JACKSBOT.BD. 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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