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InterlockRAT is a custom backdoor associated with the Interlock ransomware ecosystem and activity tracked by IBM X-Force as Hive0163. It appears in multi-stage intrusions alongside other Interlock tooling such as NodeSnake, Slopoly, JunkFiction, and the Interlock ransomware payload. In observed attack chains, NodeSnake commonly acts as an earlier-stage component that retrieves InterlockRAT as a more capable follow-on implant.
InterlockRAT is used to provide remote access and post-compromise control on Windows systems. Reported capabilities include remote command execution, reverse shell access, web socket-based command-and-control communications, and SOCKS5 tunneling, enabling operators to maintain access and pivot within victim environments. Its role in the intrusion set is consistent with a persistent operator-controlled backdoor used after initial access and before ransomware deployment.
Research has identified strong technical overlap between InterlockRAT and the Supper backdoor, also known as SocksShell or WINDYTWIST. Shared characteristics include nearly identical command structures, similar command-and-control registration formats, and the same self-deletion method. These overlaps, together with broader code similarities across malware linked to Interlock and Rhysida operations, suggest shared developers or trusted code-sharing relationships within that criminal ecosystem.
InterlockRAT has been observed in campaigns targeting organizations in North America and Europe, with healthcare, education, government, and critical infrastructure among affected sectors in broader Interlock operations. Initial access associated with the Interlock ecosystem has included ClickFix social engineering, trojanized software installers, fake software download pages, malvertising, and exploitation of edge-device vulnerabilities. Within those campaigns, InterlockRAT functions as a post-compromise access and control component that supports lateral movement and preparation for data theft, extortion, and ransomware execution.
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 threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
Interlock’s toolset includes NodeSnake, InterlockRAT, and other custom malware.
The more capable InterlockRAT followed, adding web socket communication, a SOCKS5 tunnel, and a reverse shell.
9 distinct techniques documented for this family, organized by ATT&CK tactic.
A ClickFix prompt persuaded the user to paste a command into the Windows Run dialog, downloading PowerShell code and a remote-access payload set to start automatically. The intruders used a wildcard path to invoke PowerShell, a simple evasion trick intended to reduce detection.
Once inside a system, threat actors deploy Slopoly as a PowerShell script, functioning as a client for a command-and-control (C2) framework.
The more capable InterlockRAT followed, adding web socket communication, a SOCKS5 tunnel, and a reverse shell.
NodeSnake downloaded additional payloads, including the more advanced InterlockRAT, which enables reverse shells, SOCKS5 tunneling, and remote command execution.
NodeSnake downloaded additional payloads, including the more advanced InterlockRAT, which enables reverse shells, SOCKS5 tunneling, and remote command execution.
8 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
Other indicator types observed in public reporting.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Remote access trojan identified as part of Interlock's toolset.
A remote access trojan/backdoor in Interlock’s custom toolkit. It closely mirrors Supper in internal behavior, including command structure, C2 registration, and self-deletion logic.
Remote access trojan used in the attack chain to provide more advanced post-compromise capabilities, including WebSocket communications, SOCKS5 tunneling, and reverse shell access.
Remote access trojan/backdoor used alongside Slopoly and NodeSnake in attack chains that culminate in Interlock ransomware deployment.
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.