Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network connections to known Indicators of Compromise (IOCs) associated with the TraderTraitor campaign, including trojanized Terraform providers (FLATROOF/ROOFDECK malware families) using specific domains and URL paths.
Detects network connections to known Indicators of Compromise (IOCs) associated with the TraderTraitor campaign, including trojanized Terraform providers (FLATROOF/ROOFDECK malware families) using specific domains and URL paths.
Detects network connections to known Indicators of Compromise (IOCs) associated with the TraderTraitor campaign, including trojanized Terraform providers (FLATROOF/ROOFDECK malware families) using specific domains and URL paths.
Sweeps endpoint and firewall telemetry for connections to the two high-confidence BraZetsu infrastructure IPs. Review hits against the IP's first-seen date before blocking because the Njalla host has changed service.
Sweeps endpoint and firewall telemetry for connections to the two high-confidence BraZetsu infrastructure IPs. Review hits against the IP's first-seen date before blocking because the Njalla host has changed service.
Sweeps DNS, endpoint network and proxy/firewall telemetry for BraZetsu C2, panel and shop domains using exact or subdomain matching. The apex installscenter.com remains active on Cloudflare with wildcard certificates.
Detects an agentic AI application (e.g., Claude Code, ChatGPT Codex) directly
spawning a package manager install command (npm install / pip install). As enterprise
adoption of agentic coding and automation tools spreads beyond developer workstations into
marketing, HR, finance, and operations, these tools autonomously pull open-source packages
from npm and PyPI on behalf of non-developer users. CrowdStrike reports poisoned packages
(e.g., 131 AI framework packages by STARDUST CHOLLIMA, 300+ dependencies in a single day by
ALTERED SPIDER) are increasingly pulled into environments this way, giving adversaries a path
to endpoints that never had traditional developer tooling scrutiny.
spawning a package manager install command (npm install / pip install). As enterprise
adoption of agentic coding and automation tools spreads beyond developer workstations into
marketing, HR, finance, and operations, these tools autonomously pull open-source packages
from npm and PyPI on behalf of non-developer users. CrowdStrike reports poisoned packages
(e.g., 131 AI framework packages by STARDUST CHOLLIMA, 300+ dependencies in a single day by
ALTERED SPIDER) are increasingly pulled into environments this way, giving adversaries a path
to endpoints that never had traditional developer tooling scrutiny.
Detects endpoint and network activity matching known Indicators of Compromise (IOCs) associated with BPFDoor, AVERAT, and Rekoobe backdoors based on Rapid7 research. The query checks for specific file hashes, IP addresses, and domain names across process, file, image load, network, and DNS events.
Detects network, DNS, email, and URL click events matching known IOC domains associated with AdFection, Candiru, and Discover-Tech threat intelligence reports.
Detects network, DNS, email, and URL click events matching known IOC domains associated with AdFection, Candiru, and Discover-Tech threat intelligence reports.
Detects the use of system utilities (wevtutil, PowerShell, wmic, etc.) or log-reading tools (grep, tail) for log enumeration or export when executed by processes that are not standard management or monitoring agents. This pattern is commonly associated with adversary efforts to gain situational awareness or identify security logs.
Detects the Cisco AsyncOS content scanner / AMP service writing files into
sensitive system directories such as /etc, /root or /boot. CVE-2026-76519 uses a relative
path traversal in AMP attachment handling so a crafted email makes the root-running scanner
write attacker-chosen files wherever it likes. Writes outside the expected spool and
Content Scanner Tools directories are the core exploitation artifact.
sensitive system directories such as /etc, /root or /boot. CVE-2026-76519 uses a relative
path traversal in AMP attachment handling so a crafted email makes the root-running scanner
write attacker-chosen files wherever it likes. Writes outside the expected spool and
Content Scanner Tools directories are the core exploitation artifact.
Detects anomalous process execution and loopback network activity associated with the Model Context Protocol (MCP) 'exec_in_session' method. This pattern indicates an adversary potentially abusing the AI coding assistant's MCP server capabilities to execute arbitrary commands as a C2 channel.
The following analytic detects SSH connections presenting client banners that do not match known, common SSH client software by leveraging Zeek ssh logs.
Unusual or unknown SSH client banners may indicate custom tooling, offensive frameworks, tunneling utilities, or malware using SSH for command-and-control or lateral movement.
Unusual or unknown SSH client banners may indicate custom tooling, offensive frameworks, tunneling utilities, or malware using SSH for command-and-control or lateral movement.
Performs an IOC sweep for a known XMRig cryptojacking campaign exploiting a REDCap vulnerability (CVE-2026-90817), detecting matching network connections, file hashes, and process activities across endpoints.
The following analytic detects the disablement of security steps in a CircleCI pipeline. It leverages CircleCI logs, using field renaming, joining, and statistical analysis to identify instances where mandatory security steps are not executed. This activity is significant because disabling security steps can introduce vulnerabilities, unauthorized changes, or malicious code into the pipeline. If confirmed malicious, this could lead to potential attacks, data breaches, or compromised infrastructure. Investigate by reviewing job names, commit details, and user information associated with the disablement, and examine any relevant artifacts and concurrent processes.
Detects creation of sitecustomize.py, usercustomize.py, or .pth path configuration files inside a site-packages or dist-packages directory by a python or pip process. These files are automatically loaded by Python's site module on every subsequent interpreter start, allowing a malicious package installer to establish persistence that re-executes on every future Python invocation without further victim interaction.
Detects SSH clients launched with reverse (-R) or dynamic (-D) port
forwarding flags, a hallmark of tunnel establishment used to pivot into internal
networks or expose internal services through a compromised host. The Blinder
Tunnel campaign leverages SSH tunneling to encapsulate C2 and lateral movement
traffic inside an allowed protocol.
forwarding flags, a hallmark of tunnel establishment used to pivot into internal
networks or expose internal services through a compromised host. The Blinder
Tunnel campaign leverages SSH tunneling to encapsulate C2 and lateral movement
traffic inside an allowed protocol.
Detects execution of the XMRig Monero cryptominer or a miner
launched with XMRig-specific pool and tuning arguments. In the AhsayCBS
exploitation campaign attackers dropped XMRig onto compromised backup
servers to hijack CPU resources for Monero mining, severely degrading
server performance. Detection keys on XMRig binary names and the mining
command-line grammar (stratum pool URLs, donate-level and thread-hint flags).
launched with XMRig-specific pool and tuning arguments. In the AhsayCBS
exploitation campaign attackers dropped XMRig onto compromised backup
servers to hijack CPU resources for Monero mining, severely degrading
server performance. Detection keys on XMRig binary names and the mining
command-line grammar (stratum pool URLs, donate-level and thread-hint flags).
Detects an AhsayCBS / Tomcat / Java web service process spawning a
command or script interpreter. After exploiting AhsayCBS, attackers executed
shell commands through the dropped webshell to run reconnaissance and download
the XMRig payload. A backup web service should never directly spawn cmd.exe,
powershell.exe, or a Unix shell - this indicates webshell command execution.
command or script interpreter. After exploiting AhsayCBS, attackers executed
shell commands through the dropped webshell to run reconnaissance and download
the XMRig payload. A backup web service should never directly spawn cmd.exe,
powershell.exe, or a Unix shell - this indicates webshell command execution.
Detects creation or modification of cron entries on the BeyondTrust
Remote Support / Privileged Remote Access appliance. After exploiting the pre-auth
vulnerability, attackers establish recurring execution for persistence and C2
beaconing via cron (T1053.003) on the Linux-based appliance.
Follows CISA's urgent patch advisory for BeyondTrust appliances.
Remote Support / Privileged Remote Access appliance. After exploiting the pre-auth
vulnerability, attackers establish recurring execution for persistence and C2
beaconing via cron (T1053.003) on the Linux-based appliance.
Follows CISA's urgent patch advisory for BeyondTrust appliances.
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