Analysis by: Carlos Villegas Madrid
 ALIASES:

TrojanDropper:HTML/Qakbot.RVA!MTB (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Canal de infecção: Downloaded from the Internet, Dropped by other malware

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

Tipo de compactação: 1,584,697 bytes
Tipo de arquivo: HTML, HTM
Residente na memória: No
Data de recebimento das amostras iniciais: 20 Oct 2022
Carga útil: Drops files, Displays message/message boxes

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.

Installation

This Trojan drops the following files:

  • {Default browser save path}\{{8 Random Characters}-{4 Random Characters}-{4 Random Characters}-{4 Random Characters}-{12 Random Characters}}.zip

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Rootkit Capabilities

This Trojan does not have rootkit capabilities.

Other Details

This Trojan does not exploit any vulnerability.

NOTES:

This Trojan does the following:

  • It displays the following image to lure the user:

  SOLUTION

Mecanismo de varredura mínima: 9.800
Primeiro arquivo padrão VSAPI: 17.882.08
Data do lançamento do primeiro padrão VSAPI: 18 Oct 2022
VSAPI OPR Pattern Version: 17.883.00
VSAPI OPR Pattern veröffentlicht am: 19 Oct 2022

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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.
  • {Default browser save path}\{{8 Random Characters}-{4 Random Characters}-{4 Random Characters}-{4 Random Characters}-{12 Random Characters}}.zip

Step 4

Scan your computer with your Trend Micro product to delete files detected as Trojan.HTML.QAKBOT.SMYACJD. 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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