Analysis by: John Kevin Sanchez
ALIASES:

Trojan:Win32/Dynamer!ac (Microsoft), Artemis!87B22A7F6034 (McAfee), Trojan.Win32.Sednit (Ikarus)

 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 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: 33,280 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 02 Sep 2016
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_EXPLOYT.JEJOOI

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

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}ecdp.com

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.790.04
FIRST VSAPI PATTERN DATE: 21 Sep 2016
VSAPI OPR PATTERN File: 12.791.00
VSAPI OPR PATTERN Date: 22 Sep 2016

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

Search and delete these files

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • TSPY_SEDNIT.B
  • TROJ_EXPLOYT.JEJOOI

Step 5

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