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TSPY_NIKSEAD.THAAOH

February 14, 2018
 ALIASES:

Trojan.Win32.Hesv.cmfp (KASPERSKY), Ransom.MyLittleRansom (NORTON), Mal/Cryptear-A (SOPHOS_LITE)

 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

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

  TECHNICAL DETAILS

File Size:

115,200 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

09 Jan 2018

Payload:

Connects to URLs/IPs, Steals information

Arrival Details

This Spyware 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 Spyware drops the following files:

  • %User Temp%\log\{username}_log.txt
  • %User Temp%\log\{username}_log.txt.aes
  • %Desktop%\READ_IT.txt

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Information Theft

This Spyware gathers the following data:

  • Date when the malware was run
  • Username
  • Computer name
  • Local IP
  • Operating system
  • Temp path
  • Drive letter
  • Drive type
  • File system of drives
  • Free space of drives
  • Total size of drives
  • Name of running processes
  • Process ID of running processes
  • Command Line arguments of running processes

Drop Points

This Spyware uploads files to the following File Transfer Protocol (FTP) sites:

  • ftp://{BLOCKED}k.esy.es/logs/{username}_logEnc.txt.aes

Other Details

This Spyware does the following:

  • Upon execution, the malware executes Google Chrome browser, which connects to the URL https://{BLOCKED}r.ru/

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.964.05

FIRST VSAPI PATTERN DATE:

13 Feb 2018

VSAPI OPR PATTERN File:

13.965.00

VSAPI OPR PATTERN Date:

14 Feb 2018

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

Search and delete this file

[ 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.
  • %User Temp%\log\{username}_log.txt
  • %User Temp%\log\{username}_log.txt.aes
  • %Desktop%\READ_IT.txt

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_NIKSEAD.THAAOH. 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 the following Trend Micro Support pages for more information:


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