Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

2,146 detections

Detects network connections initiated by regsvr32.exe or cmstp.exe to external IP addresses on common web ports. This behavior can indicate the use of these legitimate Windows utilities for malicious purposes, such as downloading and executing malicious scripts or DLLs, often bypassing application whitelisting.
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Danny Y@zendannyy
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Detections.ai Community
7 months ago
40204
This rule detects attempts to exploit a vulnerability in ShareFile (CVE-2026-2699/CVE-2026-2701) by monitoring for HTTP GET requests to the `/ConfigService/api/StroageZoneConfig` URI path with a `h=` query parameter. This pattern is indicative of an attacker trying to leak API secrets.
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Tim Peck@timpeck
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Detections.ai Community
7 months ago
20105
Detects the creation of specific webshell files (GW.class, payload.bin, or dpr_<8-hex-digits>.jsp) associated with CVE-2026-4681 weaponization on PTC Windchill and FlexPLM servers, or suspicious web requests containing patterns which could indicate exploitation attempts.
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Danny Y@zendannyy
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Detections.ai Community
7 months ago
50196
This rule detects exploitation attempts against Oracle WebLogic servers by identifying HTTP requests that target known WebLogic administrative or internal endpoints and simultaneously contain indicators of command execution payloads within the URL. Specifically, it looks for URLs containing '/console/', '/wls-wsat/', '/bea_wls_internal/', or '/_async/' combined with keywords like 'cmd=', 'bash', 'powershell', 'wget', 'curl', 'base64', 'IEX', or 'Runtime.getRuntime'. The rule also requires the source IP to be different from the target IP, indicating an external attacker. This pattern is typical of Remote Code Execution (RCE) exploitation attempts, including those targeting vulnerabilities like CVE-2026-21962.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
7 months ago
30367
Detects EtherRAT-related host and network activity using reported artefacts including a known C2 domain (aurineuroth[.]com), a CDN-like beacon URL pattern, the creation of a svchost.log debug file, and various hidden PowerShell commands for system information discovery (AV, domain, MachineGuid, GPU).
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Daniel Jeremiah@daniyyell
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Detections.ai Community
7 months ago
10189
This rule detects various stages of DeepLoad malware activity, including initial delivery via PowerShell execution policy bypass with IEX/IRM style ClickFix, network retrieval using mshta.exe, persistence mechanisms like scheduled task creation and WMI, fileless injection through PowerShell Add-Type compilation and suspicious child processes (LockAppHost.exe, makecab.exe, Magnify.exe), credential stealing via filemanager.exe, and USB propagation indicators including specific C2 paths and LNK themed installer names. It also identifies known DeepLoad infrastructure domains.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
7 months ago
50162
Detects HTTP GET requests to the vulnerable Citrix NetScaler /wsfed/passive?wctx endpoint, specifically looking for the malformed query string used in CVE-2026-3055 exploitation where 'wctx' is present without an associated value or '=' symbol. This rule combines common network appliance and web server logs to identify potential exploit attempts.
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Ethan Andrews@eandrews
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Federal Signal Detections
7 months ago
130175
Detects suspicious WebLogic HTTP requests with command execution indicators, specifically targeting known WebLogic endpoints and looking for patterns indicative of Remote Code Execution (RCE) payloads. The rule also correlates this activity with external IP addresses.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
7 months ago
110376
Detects exploitation attempts against Oracle WebLogic via suspicious HTTP requests and command execution patterns. The rule identifies WebLogic-specific endpoints combined with RCE payload indicators such as cmd, bash, powershell, wget, curl, or encoded payloads within the URI query.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
7 months ago
01413
Detects HTTP POST requests targeting the Langflow public flow build endpoint, which is vulnerable to unauthenticated Remote Code Execution (CVE-2026-33017).
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Tim Peck@timpeck
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Detections.ai Community
7 months ago
30107
Detects web requests to Cloudflare workers.dev subdomains containing specific keywords commonly used in the EvilTokens device code phishing campaign. The rule specifically looks for a pattern like '[lure-type]-[3char-id].[username]-[domain]...workers.dev' to identify malicious URLs.
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Ethan Andrews@eandrews
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Federal Signal Detections
7 months ago
390644
Identifies web requests to commonly abused PaaS platforms (Cloudflare Workers, Vercel, AWS Amplify) or the Microsoft device login endpoint.
This rule acts as a base to identify specific events for downstream correlation. To properly detect a device code phishing sequence (such as EvilTokens), correlate a PaaS access event followed by a device login event from the same Source IP within a 5-minute window.
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Bryant Smith@flowstate
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Detections.ai Community
7 months ago
40454
This rule detects network communication (DNS queries, HTTP requests, or network connections) to the command and control (C2) domain 'checkmarx.zone', which is associated with the TeamPCP threat group. This activity indicates potential compromise or communication with adversary infrastructure.
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Danny Y@zendannyy
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Detections.ai Community
7 months ago
30120
This rule detects potential device code phishing attempts where a user accesses a commonly abused Platform-as-a-Service (PaaS) platform (Cloudflare Workers, Vercel, Amplify) and subsequently attempts to log in via the Microsoft device login endpoint within a 5-minute window. This sequence of events is indicative of an adversary luring a user to a malicious site hosted on a PaaS platform to capture a device code, which is then used to authenticate to Microsoft services.
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Bryant Smith@flowstate
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Detections.ai Community
7 months ago
10172
This rule detects network connections to suspicious domains or IP addresses associated with potentially compromised or malicious VPN infrastructure. Specifically, it looks for connections to 'vpn-fortinet.com', 'ivanti-vpn.org', 'forticlient-vpn.de', or the IP address '194.76.226.93'. These indicators may suggest attempts to establish command and control, exfiltrate data, or engage in other malicious activities via compromised VPN services.
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Ankit Mehta@Secvyn
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Detections.ai Community
7 months ago
180179
Identifies suspicious URI request patterns potentially indicative of CVE-2026-4681 exploitation attempts against PTC PLM solutions. This rule looks for these specific patterns within web traffic logs from various sources (access logs, IIS, Apache).
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Danny Y@zendannyy
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Detections.ai Community
7 months ago
3089
This rule detects network connections or DNS queries to a specific Internet Computer Protocol (ICP) domain and canister ID (tdtqy-oyaaa-aaaae-af2dq-cai.raw.icp0.io or tdtqy-oyaaa-aaaae-af2dq-cai). This pattern is associated with command and control (C2) activity, where compromised systems communicate with an adversary-controlled server.
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Ankit Mehta@Secvyn
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Detections.ai Community
7 months ago
140157
Detects User-Agent rotation behavior from a single Source IP (c-ip) associated with more than 3 distinct
User-Agent (c-useragent) values within a 5-minute window. This behavior is characteristic of the Nuclei
'-random-agent' flag, which allows the scanner to bypass WAF (Web Application Firewall) detections by
using a different, valid browser User-Agent string for each request.
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Bryant Smith@flowstate
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Detections.ai Community
7 months ago
40104
Detects outbound network connections to the known typosquatted C2 domain (`scan.aquasecurtiy.org`) or associated IP address (`45.148.10.212`) used by the TeamPCP threat actor. This infrastructure was utilized during the Trivy supply chain attack for exfiltrating stolen SSH keys, cloud credentials, and CI/CD secrets.
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Elgonad .@elgonad
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Detections.ai Community
7 months ago
50101
Detects HTTP POST requests targeting the Langflow public flow build endpoint, which is vulnerable to unauthenticated Remote Code Execution (CVE-2026-33017).
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Tim Peck@timpeck
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Detections.ai Community
7 months ago
3043
Detects outbound web requests to the Anthropic API containing the specific beta header required to upload files. This can be abused by attackers to exfiltrate sensitive data from the Claude sandbox to an attacker-controlled Anthropic account.
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Elgonad .@elgonad
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Detections.ai Community
7 months ago
40109
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