Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects exploitation attempts against the Ray AI framework's unauthenticated /api/jobs/ endpoint (CVE-2023-48022). The rule identifies specific Python requests using a known malicious contact address ('rondo2012@atomicmail.io') and detects the delivery of fileless payloads (rondo.wfh.sh) associated with the RondoDox / ShadowRay campaign originating from known malicious infrastructure.
Detects potential exploitation of unauthenticated ServiceNow Scripted REST Resources by identifying a pattern where external IP addresses first receive 4xx (authentication required) responses when querying /api/ paths, followed by 200 OK responses for the same paths, indicating a successful authentication bypass.
Detects instances where a Perl interpreter attempts to mask itself as a Samba (smbd) service process, or where smbd/perl processes initiate network connections on port 5000, and identifies smbd processes spawned by non-standard parent processes like sh, bash, or perl, which is indicative of potential unauthorized service manipulation or backdoor activity.
Detects inbound network connections initiated by common Windows Nearby Sharing processes ('NearShare.exe', 'NearbySharing.exe', 'quickshare.exe', 'NearbyConnectionsService.exe') that occur on non-standard ports, potentially indicating unauthorized or malicious use of these utilities.
Detects inbound network connections initiated by common Windows Nearby Sharing processes ('NearShare.exe', 'NearbySharing.exe', 'quickshare.exe', 'NearbyConnectionsService.exe') that occur on non-standard ports, potentially indicating unauthorized or malicious use of these utilities.
This rule monitors incoming DNS traffic for A record responses containing RFC1918 private IP addresses (10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16). This behavior is characteristic of DNS rebinding attacks, where a malicious web service resolves to a victim's internal network address to bypass browser same-origin policies.
Detects multiple TCP synchronization (SYN) packets targeting the SSH service (port 22) from a single source IP address within a short timeframe. This behavior is indicative of a brute-force or credential-guessing attack against the SSH service.
This rule detects network activity associated with lateral movement using Windows Management Instrumentation (WMI). It specifically looks for a DCE/RPC Bind request that targets the IWbemServices interface UUID, a common method for initializing remote WMI connections to execute commands on remote systems.
Detects repeated RDP connection attempts to port 3389 from a single source within a short timeframe, characteristic of brute force or password spraying activity. The rule monitors for consecutive TLS ClientHello or MCS Connect-Initial packets.
Detects SMB authentication attempts using NTLM with a blank Lan Manager (LM) hash. This specific pattern is often associated with Pass-the-Hash attacks where tools inject malformed or blank hashes to initiate authentication, a common indicator of lateral movement attempts.
This rule detects multiple Network Level Authentication (NLA) negotiation attempts targeting port 3389 from a single source within a 60-second window, which is indicative of an RDP brute-force attack.
Detects attempts to exploit Apache Struts vulnerabilities by identifying OGNL (Object-Graph Navigation Language) expressions (starting with %{ or ${) within the Content-Type HTTP header, combined with requests to .action or .do endpoints.
This rule monitors incoming DNS traffic for A record responses containing RFC1918 private IP addresses (10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16). This behavior is characteristic of DNS rebinding attacks, where a malicious web service resolves to a victim's internal network address to bypass browser same-origin policies.
Detects HTTP responses containing JavaScript files with a Content-Length exceeding 1MB. This behavior is associated with the Bluekit PhaaS (Phishing-as-a-Service) platform, which uses large, obfuscated JavaScript bundles for browser fingerprinting and to evade static security signatures.
This rule detects potentially malicious activity associated with the exploitation of Ray framework dashboards. It identifies three distinct indicators: inbound network connections to the Ray dashboard port (8265), the execution of common file download tools (e.g., curl, wget) by Ray worker processes, and outbound connections from Ray processes to known C2 infrastructure.
This rule detects the execution of suspicious processes ('servertool.exe' or 'encrypt.exe') on a device within 60 minutes of an inbound RDP connection being accepted. This could indicate an adversary establishing remote access and then deploying tools for further malicious activity, such as data exfiltration or encryption for ransomware.
Identifies instances where a user account established an interactive logon session from a known RedVDS IP address and subsequently executed PowerShell commands containing download patterns (Net.WebClient or DownloadString), indicative of secondary payload retrieval.
Detects high-frequency network connection attempts targeting common ManageEngine service ports (8443, 9251, 9261, 8080). This behavior is indicative of potential network reconnaissance, service scanning, or automated exploitation attempts.
Detects high-frequency network connection attempts targeting common ManageEngine service ports (8443, 9251, 9261, 8080). This behavior is indicative of potential network reconnaissance, service scanning, or automated exploitation attempts.
This rule detects inbound Remote Desktop Protocol (RDP) connections (ports 3389, 3390, 3391) that are initiated by common scripting engines such as wscript.exe, cscript.exe, or powershell.exe. This behavior can be indicative of post-exploitation activity where an attacker uses scripts to establish remote access.
Detects inbound RPC Endpoint Mapper connections (TCP 135) to the Service Host process (svchost.exe). This connection acts as the necessary precursor to authenticating and instantiating remote COM objects for lateral movement.
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