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HTML_FAKEALERT.AED

August 23, 2017
 Analysis by: John Anthony Banes
 ALIASES:

Trojan.HTML.Fraud.mt (Kaspersky); SupportScam:JS/TechBrolo.L (Microsoft); JS/FakeSecurityAlert (NAI)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


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 does not have any propagation routine.

It does not have any backdoor routine.

  TECHNICAL DETAILS

File Size:

7,371 bytes

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

21 Aug 2017

Payload:

Displays graphics/image

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.

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Other Details

This Trojan requires the following additional components to properly run:

  • {malware path}\welcome.mp3
  • {malware path}\alert1.html
  • {malware path}\alert.html

NOTES:
It displays the following fake alert message telling the users to contact the fake Customer Support number:

Closing the message will display a Print dialog, asking the user to print the fake alert message.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.584.02

FIRST VSAPI PATTERN DATE:

09 Aug 2017

VSAPI OPR PATTERN File:

13.585.00

VSAPI OPR PATTERN Date:

10 Aug 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

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as HTML_FAKEALERT.AED. 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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