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JS_INFOSTEAL.AUSRX

July 06, 2017
 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 gathers certain information on the affected computer.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

12,260 bytes

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

27 Jun 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.

Information Theft

This Trojan gathers the following information on the affected computer:

  • Processor Revision
  • Processor Architecture
  • Computer Name
  • Username
  • Group
  • OS version
  • Running Processes

Other Details

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

  • http://{BLOCKED}shdf8oasdfhasdf.site/r62.php?cmd=p&id={hash id}&group={group}&os={OS version}&processes={running processes}&rnd={random number}

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.500.01

FIRST VSAPI PATTERN DATE:

27 Jun 2017

VSAPI OPR PATTERN File:

13.501.00

VSAPI OPR PATTERN Date:

28 Jun 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 JS_INFOSTEAL.AUSRX. 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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