Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects network connections to known Command and Control (C2) domains used by NetSupport RAT as delivered by the IClickFix framework.
This rule detects successful SSO logins on FortiGate devices using usernames and source IP addresses associated with a known malicious campaign exploiting a SAML SSO bypass. The rule specifically looks for successful SSO logins (logid == "0100032001", method == "sso", status == "success") from a predefined list of malicious usernames or source IP addresses.
Detects network traffic to fallback command and control (C2) domains generated by the 'Children Protection' malicious browser extension. The extension uses a Domain Generation Algorithm (DGA) based on the current date to provide resilient C2 infrastructure.
Detects network connections to the GitHub API attempting to fetch a 'command.txt' file. This behavior is characteristic of the GITSHELLPAD backdoor, which uses private GitHub repositories for command and control (C2) communication as seen in the Gopher Strike campaign.
Detects network connections to known infrastructure associated with the EncystPHP web shell campaign. This IP (45.234.176.202) was observed distributing the 'c' and 'k.php' droppers.
This rule detects when a system configuration file is downloaded from a FortiGate device within 60 seconds of a successful SSO login from the same user and source IP. This rapid sequence of events is indicative of automated scripts used by attackers to exfiltrate device configurations immediately after gaining initial access.
This rule detects the creation of a local administrative account on a FortiGate device with a generic name commonly used by threat actors for persistence following an initial compromise. The rule specifically looks for log events indicating the addition of a new system administrator account with names like 'secadmin', 'itadmin', 'support', 'backup', 'remoteadmin', or 'audit'.
Detects attempts to exploit an authentication bypass vulnerability in the Inetutils Telnet daemon. Attackers inject the '-f' flag into the 'USER' environment variable during Telnet negotiation to gain unauthorized shell access.
Detects attempts to exploit the SmarterMail authentication bypass vulnerability (WT-2026-0001) by sending a POST request to the /api/v1/auth/force-reset-password endpoint with 'IsSysAdmin' set to 'true'.
Detects C2 network traffic associated with PylangGhost and GolangGhost, RATs used by the PurpleBravo group. The malware sends an RC4-encrypted payload via an HTTP POST request to known C2 servers.
Detects C2 network traffic associated with the InvisibleFerret RAT, used by the PurpleBravo group. This malware uses a plaintext HTTP channel for beaconing, data exfiltration, and payload delivery to specific URI endpoints.
Detects ICMP Echo Request packets where the Identification field is set to the specific magic value 0xC0DE (49374). This value is used by the VoidLink rootkit as a trigger for its covert, out-of-band C2 channel, which can bypass standard firewall rules.
Detects network connections or DNS queries to command and control (C2) domains associated with the TamperedChef malvertising campaign.
Detects network connections to domains associated with the DarkSpectre threat actor's campaigns, including GhostPoster, ShadyPanda, and The Zoom Stealer. These campaigns leverage malicious browser extensions for data theft, affiliate fraud, and corporate espionage.
Detects network traffic to web services associated with the ggwave project, such as 'ggwave.ggerganov.com'. These services can generate audio payloads from text, which could be used for covert data exfiltration over an acoustic channel, bypassing traditional network monitoring for the data content itself.
Detects HTTP POST requests to the Appsmith password reset endpoint where the 'Origin' header does not match the expected internal or legitimate application domain. This is indicative of an attempt to exploit CVE-2026-22794 to achieve account takeover.
Detects an anomalously high rate of network connections to a MongoDB server from a single source IP, a pattern associated with the exploitation of MongoBleed (CVE-2025-14847).
This rule detects network connections and DNS queries to command-and-control (C2) domains associated with malicious Chrome extensions. These extensions are known to steal sensitive data such as ChatGPT and DeepSeek conversations, as well as other browsing data. The rule specifically targets known malicious domains to identify C2 communication and potential data exfiltration.
This rule detects an attempt to exploit an XML External Entity (XXE) vulnerability in GeoServer's Web Map Service (WMS) GetMap function. The detection logic looks for HTTP POST requests to the '/wms?' endpoint containing 'request=GetMap' in the URI, and specific XML elements like '<StyledLayerDescriptor>', '<!DOCTYPE', '<!ENTITY', and 'SYSTEM' within the request body, along with a URL-like pattern '://' indicating an attempt to fetch external content.
This query detects network communication to known Command and Control (C2) IP addresses used by the Medusa ransomware group, often via malicious SimpleHelp RMM servers.
Detects the injection of a malicious iframe with attributes that impersonate the legitimate Stripe payment interface. This technique is used by Magecart actors to steal credit card data by replacing the real payment form with a clone.
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