Mr_Rot13 is a stable hacking group identified through a PHP backdoor and a Downloader domain linked to a C2 infrastructure active since 2020. They utilize the Rot13 algorithm for obfuscation and have demonstrated a low detection rate across security products, indicating advanced operational security. Their activities include exploiting CVE-2026-41940 to deliver malicious payloads and maintaining covert communication via Telegram. The group has shown a particular focus on WordPress as a target, with ongoing operations that suggest a sophisticated threat actor rather than opportunistic attackers.
The same group is tracked under different names by different vendors.
| Vendor | Name |
|---|---|
| Various | Mr_Rot13 |
No techniques mapped yet.
No IOCs extracted yet from reports naming this actor.
Every report in the Global Intel Library that names Mr_Rot13, newest first. Open any report to see the full analysis with provenance.
No reports in the Lore library name this actor yet.
Indicators from free threat feeds (abuse.ch ThreatFox, AlienVault OTX) attributed to Mr_Rot13. Each row shows why it was linked and where it came from.
No feed indicators linked to this actor yet. Feeds are checked every hour.
Open-source reports about this actor collected from MISP Galaxy.