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Statistics Report on Malware Targeting Linux SSH Servers in Q4 2025

ID: 01764c34-7713-534d-8f29-26d8f5c5c1d0

STIX ID: report--01764c34-7713-534d-8f29-26d8f5c5c1d0

Feed Name: ASEC

Threat Score
72/100

Date Published: 2026-01-07

Date Updated: 2026-04-26

Author: ATCP

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AhnLab ASEC's Q4 2025 honeypot analysis reports widespread brute‑force/dictionary attacks against Linux SSH servers dominated by P2PInfect worms (80.4%), with Prometei and XMRig also observed; it documents ongoing ShellBot (PerlBot) distribution attributed to the RUBYCARP actor, details ShellBot command capabilities and configurations, and publishes associated IoCs (file hashes, URLs, IP addresses) to support detection and mitigation.

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