MALWARE FAMILY

Remcos

Internal ID: win.remcos

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.

Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.

Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.

Remcos is developed by the cybersecurity company BreakingSecurity.

Threat Analysis

Remcos is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.

External References

→http://malware-traffic-analysis.net/2017/12/22/index.html

→https://0xmrmagnezi.github.io/malware%20analysis/RemcosRAT/

→https://asec.ahnlab.com/en/32376/

→https://asec.ahnlab.com/ko/25837/

→https://asec.ahnlab.com/ko/32101/

→https://blog.360totalsecurity.com/en/vendetta-new-threat-actor-from-europe/

→https://blog.checkpoint.com/2019/06/19/sandblast-agent-phishing-germany-campaign-security-hack-ransomware/

→https://blog.checkpoint.com/security/march-2023s-most-wanted-malware-new-emotet-campaign-bypasses-microsoft-blocks-to-distribute-malicious-onenote-files/

→https://blog.fortinet.com/2017/02/14/remcos-a-new-rat-in-the-wild-2

→https://blog.malwarebytes.com/threat-analysis/2021/07/remcos-rat-delivered-via-visual-basic/

Quick Facts

TypeMalware Family

Aliases1

Also Known As

win.remcos

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.

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