Analysis by: Eleazar Valles
ALIASES:

Trojan-Spy.Keylogger.AgentTesla(IKARUS), Backdoor:MSIL/Remcos!MTB(MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It logs a user's keystrokes to steal information.

  TECHNICAL DETAILS

File Size: 297,984 bytes
File Type: EXE
Memory Resident: No
Payload: Connects to URLs/IPs, Collects system information, Gathers data, Collects credentials from browsers

Arrival Details

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This Trojan Spy deletes the following files:

  • %System Root%\%insfolder%\%insname%:Zone.Identifier

Information Theft

This Trojan Spy gathers the following data:

  • It gathers credentials from the following vaults:
    • Windows Secure Note
    • Windows Web Password Credential
    • Windows Credential Picker Protector
    • Web Credentials
    • Windows Credentials
    • Windows Domain Certificate Credential
    • Windows Domain Password Credential
    • Windows Extended Credential
  • It gathers credentials from the following applications:
    • Google Chrome
    • Mozilla
    • Microsoft Edge
    • Apple
    • QQBrowser
    • Opera
    • Yandex
    • 360Chrome
    • Iridium
    • Comodo
    • ChromePlus
    • Chromium
    • Torch
    • 7Star
    • Amigo
    • BraveSoftware
    • CentBrowser
    • Chedot
    • CocCoc
    • Elements Browser
    • Epic Privacy Browser
    • Kometa
    • Orbitum
    • Sputnik
    • uCozMedia
    • Vivaldi
    • CatalinaGroup
    • Liebao
    • Sleipnir5
    • QIP Surf
    • Coowon
    • SeaMonkey
    • Flock
    • UCBrowser
    • BlackHawk
    • Cyberfox
    • K-Meleon
    • Icecat
    • IceDragon
    • Pale Moon
    • Waterfox
    • Thunderbird
    • Foxmail
    • Opera Mail
    • Pocomail
    • The Bat!
    • Postbox
    • Claws-mail
    • Trillian
    • Psi
    • Psi+
    • Ipswitch
    • FlashFXP
    • SmartFTP
    • FTPGetter
    • IncrediMail
    • Eudora
    • RimArts
    • OpenVPN
    • WinSCP 2
    • COREFTP
    • DownloadManager

It logs a user's keystrokes to steal information.

Stolen Information

This Trojan Spy sends the data it gathers to the following email addresses via SMTP:

  • Host: smtp.{BLOCKED}-sa.com
    Email: francis@{BLOCKED}-sa.com
    Password: ZCu)LIW6

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 17.556.02
FIRST VSAPI PATTERN DATE: 10 May 2022
VSAPI OPR PATTERN File: 17.557.00
VSAPI OPR PATTERN Date: 11 May 2022

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

Step 2

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 3

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.MSIL.NEGASTEAL.RJAHSIV. 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:


Did this description help? Tell us how we did.