SecuriTricks - remcos

Remote Monitoring and Management (RMM) Tooling Increasingly an Attacker's First Choice

Threat actors are increasingly using legitimate remote monitoring and management (RMM) tools as initial payloads in email campaigns. This trend aligns with a decrease in the use of traditional loaders and botnets by initial access brokers. RMMs can be exploited for data collection, financial theft,…

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rmm

Published: March 12, 2025

Downloadable IOCs: 15

Blind Eagle: …And Justice for All

Check Point Research uncovered ongoing campaigns by Blind Eagle targeting Colombian institutions since November 2024. The group exploits a variant of CVE-2024-43451, using malicious .url files to deliver malware. Their attack chain includes HeartCrypt-packed executables, a .NET RAT, and Remcos RAT …

Published: March 10, 2025

Downloadable IOCs: 16

Remcos RAT Targets Europe: New AMSI and ETW Evasion Tactics Uncovered

This week, the SonicWall threat research team discovered a new update in the Remcos infection chain aimed at enhancing its stealth by patching AMSI scanning and ETW logging to evade detection. This loader was seen distributing Async RAT in the past but now it has extended its functionality to Remco…

Published: March 5, 2025

Downloadable IOCs: 7

TAG-124’s Multi-Layered TDS Infrastructure and Extensive User Base

Insikt Group has identified a complex infrastructure linked to the traffic distribution system TAG-124, which overlaps with several threat activity clusters and includes compromised WordPress sites and various servers. Multiple threat actors, including operators of Rhysida and Interlock ransomware,…

Published: January 31, 2025

Downloadable IOCs: 102

Crypted Hearts: Exposing the HeartCrypt Packer-as-a-Service Operation

This analysis examines HeartCrypt, a new packer-as-a-service (PaaS) used to protect malware. Developed since July 2023 and launched in February 2024, HeartCrypt charges $20 per file to pack Windows x86 and .NET payloads. It is primarily used by malware operators of families like LummaStealer, Remco…

Published: December 14, 2024

Downloadable IOCs: 0

How to Improve Cyber Threat Investigations with TI Lookup

This article discusses the use of Threat Intelligence (TI) Lookup, a centralized service for threat data exploration and analysis. It highlights key features such as fast search results, extensive search parameters, and access to a large database of malware and phishing samples. The article explain…

Published: November 13, 2024

Downloadable IOCs: 0

New Campaign Uses Remcos RAT to Exploit Victims

A phishing campaign utilizing Remcos RAT has been detected. The attack begins with an email containing a malicious Excel document that exploits CVE-2017-0199. When opened, it downloads and executes an HTA file, which in turn downloads and runs a malicious EXE. This EXE uses PowerShell to load and e…

Published: November 8, 2024

Downloadable IOCs: 2

Malicious CAPTCHA delivers Lumma and Amadey Trojans

An adware campaign targets online users by presenting them with fake CAPTCHA or update prompts, tricking them into running malicious PowerShell commands that deploy credential-stealing malware like Lumma and Amadey. The attackers leverage ad networks to redirect victims to compromised sites hosting…

Published: October 29, 2024

Downloadable IOCs: 1

The New Malware Distribution Service

This analysis uncovers a novel malware distribution mechanism utilizing VBE scripts stored in archive files to spread various malware families, including AgentTesla, Remcos, Snake, and NjRat. It details the infection chain, which involves downloading encoded files from a command-and-control server,…

Published: October 16, 2024

Downloadable IOCs: 7

Emansrepo Stealer: Multi-Vector Attack Chains

A Python infostealer named Emansrepo has been observed since November 2023, distributed via phishing emails containing fake purchase orders and invoices. The malware steals browser data, credit card information, and files, sending them to the attacker's email. The attack chain has evolved, becoming…

Published: September 4, 2024

Downloadable IOCs: 42

Threat Actor Abuses Cloudflare Tunnels to Deliver RATs

Proofpoint is tracking a cluster of cybercriminal threat activity leveraging Cloudflare Tunnels to deliver malware, particularly remote access trojans (RATs) like Xworm, AsyncRAT, VenomRAT, GuLoader, and Remcos. The campaigns employ various techniques, such as using URL files to establish connectio…

Published: August 1, 2024

Downloadable IOCs: 13

Secret Message: Steganography Tricks of TA558 Group in Cyber Attacks on Enterprises in Russia and Belarus

F.A.C.C.T.'s Threat Intelligence analysts have investigated numerous cyberattacks by the TA558 group targeting enterprises, government institutions, and banks in Russia and Belarus. The attacks aimed to steal data and gain access to the organization's internal systems. TA558 used multi-stage phishi…

Published: July 30, 2024

Linked vulnerabilities : CVE-2017-11882

Downloadable IOCs: 74

Likely eCrime Actor Capitalizing on Falcon Sensor Issues

A cybercrime group has leveraged a content update issue with the CrowdStrike Falcon sensor to distribute malicious files targeting Latin American customers. The campaign involves a ZIP archive named 'crowdstrike-hotfix.zip' containing a HijackLoader payload that loads RemCos malware, using Spanish …

Published: July 29, 2024

Downloadable IOCs: 14

RAT Distributed as UUEncoding (UUE) File

This intelligence report describes a malicious operation where the Remcos Remote Access Trojan (RAT) is being disseminated through phishing emails containing an attachment exploiting the Unix-to-Unix Encoding (UUE) technique. The encoded file loads an obfuscated VBScript that fetches additional mal…

Published: June 11, 2024

Downloadable IOCs: 3

PDF “Flawed Design” Exploitation

Check Point Research identified an unusual pattern involving PDF exploitation, mainly targeting users of Foxit Reader. This exploit triggers security warnings that could deceive users into executing harmful commands. The exploitation occurs through a flawed design in Foxit Reader, showing 'OK' as t…

Published: May 14, 2024

Downloadable IOCs: 40

GoTo Meeting loads RAT via Shellcode Loader

A malicious campaign has been discovered that exploits the legitimate GoTo Meeting online conferencing software to deploy the Remcos remote access trojan (RAT). The attack chain involves utilizing lures like porn downloads, software setup files, and tax forms with Russian and English file names. It…

Published: May 13, 2024

Downloadable IOCs: 17

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part Four

This comprehensive analysis provides a thorough examination of the REMCOS Remote Access Trojan (RAT), a prominent malware threat that gained significant prevalence in 2024. The analysis delves into the malware's configuration structure, command and control capabilities, persistence mechanisms, and …

Published: May 9, 2024

Downloadable IOCs: 34

HijackLoader Updates

HijackLoader, also known as IDAT Loader, is a modular malware loader capable of executing multiple payloads. It utilizes a variety of modules for code injection, execution, and evasion techniques. This report analyzes the updated version of HijackLoader, which includes new modules for bypassing Win…

Published: May 7, 2024

Downloadable IOCs: 11

Analysis of TargetCompany’s Attacks Against MS-SQL Servers (Mallox, BlueSky Ransomware)

The report analyzes recent attacks by the TargetCompany ransomware group targeting poorly managed MS-SQL servers. The group initially installs Remcos RAT and a remote screen control malware for reconnaissance and lateral movement. Subsequently, the Mallox ransomware is deployed to encrypt the infec…

Published: May 2, 2024

Downloadable IOCs: 5

Tag: remcos

Attack reports

Threat actors misuse Node.js to deliver malware and other malicious payloads

Blind Eagle: ...And Justice for All

Threat actors leverage tax season to deploy tax-themed phishing campaigns

Gamaredon campaign abuses LNK files to distribute Remcos backdoor

New Steganographic Campaign Distributing Multiple Malware Variants

Remote Monitoring and Management (RMM) Tooling Increasingly an Attacker's First Choice

Blind Eagle: …And Justice for All

Remcos RAT Targets Europe: New AMSI and ETW Evasion Tactics Uncovered

TAG-124’s Multi-Layered TDS Infrastructure and Extensive User Base

Crypted Hearts: Exposing the HeartCrypt Packer-as-a-Service Operation

How to Improve Cyber Threat Investigations with TI Lookup

New Campaign Uses Remcos RAT to Exploit Victims

Malicious CAPTCHA delivers Lumma and Amadey Trojans

The New Malware Distribution Service

Emansrepo Stealer: Multi-Vector Attack Chains

Threat Actor Abuses Cloudflare Tunnels to Deliver RATs

Secret Message: Steganography Tricks of TA558 Group in Cyber Attacks on Enterprises in Russia and Belarus

Likely eCrime Actor Capitalizing on Falcon Sensor Issues

RAT Distributed as UUEncoding (UUE) File

PDF “Flawed Design” Exploitation

GoTo Meeting loads RAT via Shellcode Loader

Dissecting REMCOS RAT: An in-depth analysis of a widespread 2024 malware, Part Four

HijackLoader Updates

Analysis of TargetCompany’s Attacks Against MS-SQL Servers (Mallox, BlueSky Ransomware)