# Interlock Ransomware Group

> As of 2026-05-30, Interlock Ransomware Group is a Russia-nexus threat actor tracked by Threadlinqs Intelligence across 2 threats spanning vulnerability. Also known as Interlock, Interlock Team, Interlock RaaS, Interlock Gang. ATT&CK coverage spans 31 techniques across 12 tactics in 2 of 2 tracked threats. Most-observed techniques: T1003 (OS Credential Dumping), T1018 (Remote System Discovery), T1021 (Remote Services).

- **Nation:** Russia
- **Tracked threats:** 2
- **Categories:** VULNERABILITY
- **Also known as:** Interlock, Interlock Team, Interlock RaaS, Interlock Gang
- **As of:** 2026-05-30

## ATT&CK techniques observed

31 techniques observed across 2 of 2 tracked threats. Tactics: Discovery (6), Command and Control (4), Credential Access (3), Persistence (3), Stealth (formerly Defense Evasion) (3), Collection (2).

- [T1003](https://intel.threadlinqs.com/technique/T1003) OS Credential Dumping — Credential Access — observed in 2 of 2 tracked threats
- [T1018](https://intel.threadlinqs.com/technique/T1018) Remote System Discovery — Discovery — observed in 2 of 2 tracked threats
- [T1021](https://intel.threadlinqs.com/technique/T1021) Remote Services — Lateral Movement — observed in 2 of 2 tracked threats
- [T1059](https://intel.threadlinqs.com/technique/T1059) Command and Scripting Interpreter — Execution — observed in 2 of 2 tracked threats
- [T1070](https://intel.threadlinqs.com/technique/T1070) Indicator Removal — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1071](https://intel.threadlinqs.com/technique/T1071) Application Layer Protocol — Command and Control — observed in 2 of 2 tracked threats
- [T1105](https://intel.threadlinqs.com/technique/T1105) Ingress Tool Transfer — Command and Control — observed in 2 of 2 tracked threats
- [T1190](https://intel.threadlinqs.com/technique/T1190) Exploit Public-Facing Application — Initial Access — observed in 2 of 2 tracked threats
- [T1486](https://intel.threadlinqs.com/technique/T1486) Data Encrypted for Impact — Impact — observed in 2 of 2 tracked threats
- [T1490](https://intel.threadlinqs.com/technique/T1490) Inhibit System Recovery — Impact — observed in 2 of 2 tracked threats
- [T1005](https://intel.threadlinqs.com/technique/T1005) Data from Local System — Collection — observed in 1 of 2 tracked threats
- [T1014](https://intel.threadlinqs.com/technique/T1014) Rootkit — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1016](https://intel.threadlinqs.com/technique/T1016) System Network Configuration Discovery — Discovery — observed in 1 of 2 tracked threats
- [T1027](https://intel.threadlinqs.com/technique/T1027) Obfuscated Files or Information — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1039](https://intel.threadlinqs.com/technique/T1039) Data from Network Shared Drive — Collection — observed in 1 of 2 tracked threats

## Tracked threats

- [Interlock Ransomware Exploits Cisco FMC Zero-Day (CVE-2026-20265) Amid March 2026 CVE Surge](https://intel.threadlinqs.com/threat/TL-2026-0356) — CRITICAL
- [Cisco Secure Firewall Management Center Insecure Java Deserialization RCE (CVE-2026-20131) — Interlock Ransomware Zero-Day Exploitation](https://intel.threadlinqs.com/threat/TL-2026-0260) — CRITICAL

## Related CVEs

2 CVEs referenced by tracked Interlock Ransomware Group activity.

- [CVE-2026-20265](https://intel.threadlinqs.com/cve/CVE-2026-20265)
- [CVE-2026-20131](https://intel.threadlinqs.com/cve/CVE-2026-20131)

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/Interlock%20Ransomware%20Group