MicroBackdoor

Internal ID: win.microbackdoor

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Open-source lightweight backdoor for C2 communication.

GitHub: https://github.com/Cr4sh/MicroBackdoor

Threat Analysis

MicroBackdoor 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

→https://attackiq.com/2022/04/29/attack-graph-response-to-unc1151-continued-targeting-of-ukraine/

→https://cert.gov.ua/article/37626

→https://cip.gov.ua/en/news/khto-stoyit-za-kiberatakami-na-ukrayinsku-kritichnu-informaciinu-infrastrukturu-statistika-15-22-bereznya

→https://cluster25.io/2022/03/08/ghostwriter-unc1151-adopts-microbackdoor-variants-in-cyber-operations-against-targets-in-ukraine/

→https://github.com/cr4sh/microbackdoor

→https://inquest.net/blog/2022/04/07/ukraine-cyberwar-overview

→https://ti.qianxin.com/blog/articles/Analysis-of-attack-activities-of-suspected-aptorganization-unc1151-against-ukraine-and-other-countries/

→https://www.cybercom.mil/Media/News/Article/3098856/cyber-national-mission-force-discloses-iocs-from-ukrainian-networks/

→https://www.mandiant.com/resources/spear-phish-ukrainian-entities

Quick Facts

TypeMalware Family

Aliases1

Also Known As

win.microbackdoor

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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