Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

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

It connects to a website to send and receive information.

It gathers information and reports it to its servers.

  TECHNICAL DETAILS

File Size: 258,578 bytes
File Type: PS1
Memory Resident: Yes
Initial Samples Received Date: 28 May 2017

Arrival Details

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

Backdoor Routine

This Trojan connects to the following websites to send and receive information:

  • http://{BLOCKED}.{BLOCKED}.83.239:59876/safebrowsing/rd/CltOb12nLW1IbHehcmUtd2hUdmFzEBAY7-0KIOkUDC7h2
  • http://blog.{BLOCKED}ravelclubph.com/safebrowsing/rd/CltOb12nLW1IbHehcmUtd2hUdmFzEBAY7-0KIOkUDC7h2
  • http://shop.{BLOCKED}igeeks.info/safebrowsing/rd/CltOb12nLW1IbHehcmUtd2hUdmFzEBAY7-0KIOkUDC7h2
  • http://{BLOCKED}.{BLOCKED}.119.86/safebrowsing/rd/CltOb12nLW1IbHehcmUtd2hUdmFzEBAY7-0KIOkUDC7h2

Other Details

This Trojan does the following:

  • Create/Remove directories
  • Manipulate files
  • Execute commands
  • Download/Upload files
  • Create/Terminate process
  • Create/Stop service

It gathers the following information and reports it to its servers:

  • Computer name
  • Username
  • OS version
  • Local time
  • IP address

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 13.434.05
FIRST VSAPI PATTERN DATE: 28 May 2017
VSAPI OPR PATTERN File: 13.435.00
VSAPI OPR PATTERN Date: 29 May 2017

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

Scan your computer with your Trend Micro product to delete files detected as TROJ_PSHELL.P. 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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