MALWARE FAMILY
B1txor20
Internal ID: elf.b1txor20
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
B1txor20 is a malware that was discovered by 360 Netlab along others exploiting Log4J. the name is derived from using the file name "b1t", the XOR encrpytion algorithm, and the RC4 algorithm key length of 20 bytes. According to 360 Netlab this Backdoor for Linux platform uses DNS Tunnel to build a C2 communication channel. They also had the assumption that the malware is still in development, because of some bugs and not fully implemented features.
Threat Analysis
B1txor20 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
Quick Facts
TypeMalware Family
Aliases1
Also Known As
elf.b1txor20
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.