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ISRStealer is identified in the provided content as a backdoor malware family. It appears in Spamhaus botnet controller rankings and notes as “ISRStealer Backdoor,” indicating associated command-and-control infrastructure was observed by Spamhaus. Beyond that classification and its presence in botnet C&C reporting, the provided content does not supply high-confidence details on its capabilities, infection vectors, targeted systems, victim industries, associated threat actors, or specific indicators of compromise.
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
2 distinct techniques documented for this family, organized by ATT&CK tactic.
Spamhaus researchers issued listings for over 7,000 botnet Command & Control ("C&C") servers... These C&C servers enabled and controlled online crime such as credential theft, e-banking fraud, spam and DDoS attacks. They were also used for the retrieval of stolen data.
9 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
Other indicator types observed in public reporting.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A backdoor malware family associated with botnet controllers.
Backdoor malware associated with botnet controllers.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.