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TSPY_SEDNIT.C

July 16, 2015
 ALIASES:

Trojan:Win32/Foosace.J!dha (Microsoft)

 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

This is the detection for the third stage malware related to the new Java zero-day exploit that was used in the targeted attack campaign, Operation Pawn Storm. In the first stage of the infection chain, recipients get a spearphishing URL which leads to several redirections, finally pointing to the URL where the exploit is hosted. Another malware, detected as TROJ_DROPPR.CXC then drops this SEDNIT variant that steals system information.

To get a one-glance comprehensive view of the behavior of this Spyware, refer to the Threat Diagram shown below.

Operation Pawn Storm is an APT campaign that targeted military and defense contractors from the US and its allies among others. For more details on this targeted attack, read our entry, An In-Depth Look at How Pawn Storm’s Java Zero-Day Was Used.

This spyware may arrive bundled with malware packages as a malware component. It may be dropped by other malware.

It retrieves specific information from the affected system.

  TECHNICAL DETAILS

File Size:

40,960 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

11 Jul 2015

Payload:

Collects system information, Connects to URLs/IPs

Arrival Details

This spyware may arrive bundled with malware packages as a malware component.

It may be dropped by the following malware:

  • TROJ_DROPPR.CXC

Information Theft

This spyware retrieves the following information from the affected system:

  • OS Version
  • Machine Information
  • Hostname/Computer Name
  • List of running processes
  • Hard Disk Drive Information

NOTES:

It connects to the following websites to send stolen information:

  • {BLOCKED}.{BLOCKED}.146.185
  • www.{BLOCKED}t.com
  • www.{BLOCKED}l.org

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.792.04

FIRST VSAPI PATTERN DATE:

15 Jul 2015

VSAPI OPR PATTERN File:

11.793.00

VSAPI OPR PATTERN Date:

15 Jul 2015

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

Restart in Safe Mode

[ Learn More ]

Step 4

Remove the malware/grayware file dropped/downloaded by TSPY_SEDNIT.C. (Note: Please skip this step if the threat(s) listed below have already been removed.)

    • TROJ_DROPPR.CXC

Step 5

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