Analysis by: Leidryn Saludez
 ALIASES:

Trojan-Downloader.MSIL.Agent (IKARUS)

 PLATFORM:

Windows

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

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

This Backdoor 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 certain websites to send and receive information.

  TECHNICAL DETAILS

Tipo de compactação: 37,376 bytes
Tipo de arquivo: EXE
Data de recebimento das amostras iniciais: 25 Jun 2025
Carga útil: Collects system information, Connects to URLs/IPs, Steals information

Arrival Details

This Backdoor 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 Backdoor gathers the following data:

  • OS Version
  • Local IP address
  • Host Name
  • Public IP address
  • IP location

Other Details

This Backdoor connects to the following URL(s) to get the affected system's IP address:

  • http://{BLOCKED}i.com

It connects to the following website to send and receive information:

  • {BLOCKED}.{BLOCKED}.{BLOCKED}.205
  • http://{BLOCKED}.{BLOCKED}.{BLOCKED}.34.bc.googleusercontent.com
  • {BLOCKED}.{BLOCKED}.{BLOCKED}.241

  SOLUTION

Mecanismo de varredura mínima: 9.800
Primeiro arquivo padrão VSAPI: 20.288.01
Data do lançamento do primeiro padrão VSAPI: 25 Jun 2025
VSAPI OPR Pattern Version: 20.289.00
VSAPI OPR Pattern veröffentlicht am: 26 Jun 2025

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

Scan your computer with your Trend Micro product to delete files detected as Backdoor.Win64.ANONDOOR.THFBFBE. 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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