Analysis by: Jeanne Jocson
ALIASES:

JS/Exploit.Agent.NLU trojan (ESET), Trojan.Js.Exploit (Ikarus)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • 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 may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size: 101,976 bytes
File Type: HTML, HTM
Memory Resident: No
Initial Samples Received Date: 30 Mar 2016

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.

It may be hosted on a website and run when a user accesses the said website.

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}siesantennes.cakesofstyle.co.uk/?s=-5BYrBxIN&j=pwk&x=6Z21UEy&y=fWYS8I&g=35Juzo&i=vquOM4BU8Q&u=Tjd7MPD

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.436.05
FIRST VSAPI PATTERN DATE: 30 Mar 2016
VSAPI OPR PATTERN File: 12.437.00
VSAPI OPR PATTERN Date: 31 Mar 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

Scan your computer with your Trend Micro product to delete files detected as JS_AXPERGLE.WG. 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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