reGeorg
MITRE ATT&CK: S1187 View on attack.mitre.org
Aliases: reGeorg
- Malware type
- webshell
- Family
- Malware family
- Operating systems
- network-devices, windows, macos, linux
- Profile updated
- 2026-07-07 12:49:21
Context
reGeorg is an open-source web shell written in Python that can be used as a proxy to bypass firewall rules and tunnel data in and out of targeted networks.
Detection coverage
- 2 YARA rules
- 231 Sigma rules
Malware & tools used
- Python (attack-pattern)
- Protocol Tunneling (attack-pattern)
- Remote Desktop Protocol (attack-pattern)
- Ingress Tool Transfer (attack-pattern)
- SSH (attack-pattern)
- Web Protocols (attack-pattern)
- Proxy (attack-pattern)
- SMB/Windows Admin Shares (attack-pattern)
- Web Shell (attack-pattern)
- Non-Application Layer Protocol (attack-pattern)
Used by threat actors
- Ember Bear (threat-actor)
- APT28 (threat-actor)
- APT29 (threat-actor)
- 2022 Ukraine Electric Power Attack (campaign)
Detection rules
- VOLEXITY_Webshell_Jsp_Regeorg (yara-rule)
- SIGNATURE_BASE_REGEORG_Tuneller_Generic (yara-rule)
Reports & references
- Kaspersky — 107610 (report)
- secureworks.com — Ransomware Deployed By Adversary (report)
- secureworks.com — Samsam Ransomware Campaigns (report)
- Microsoft — Cadet Blizzard Emerges As A Novel And Distinct Russian Threat Actor (report)
- ESET — Worok Big Picture (report)
- sygnia.co — Weaver Ant Tracking A China Nexus Cyber Espionage Operation (report)
- cert.ssi.gouv.fr — Certfr 2023 Cti 009 (report)
- synacktiv.com — Open Source Toolset Of An Ivanti Csa Attacker (report)
- Cisco Talos — New Zardoor Backdoor (report)
- CERT-UA — 6278706 (report)
- blog.bushidotoken.net — The Russian Apt Tool Matrix (report)
- malpedia.caad.fkie.fraunhofer.de — Win.Regeorg (report)
- github.com — Regeorg (report)
- media.defense.gov — Csa Gru Global Brute Force Campaign Uoo158036 21 (report)
- sensepost.com — Regeorg (report)
- MITRE ATT&CK — S1187 (report)
- github.com — Regeorg Master (report)
- fortiguard.com — Regeorg Http Tunnel (report)