Detections

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

2,594 detections

Detects established SSH network connections originating from the internal network to external destinations on ports other than the standard port 22. This behavior is often associated with unauthorized SSH tunneling or command-and-control (C2) communication intended to bypass standard firewall egress filtering.
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Ali AlEnezi@site
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Detections.ai Community
1 month ago
103
Detects unauthorized or suspicious POST requests to the Cisco Firepower Management Center (FMC) web interface that lack standard authentication headers (Cookie, Authorization, or X-Api-Token). This pattern is consistent with exploit attempts targeting CVE-2026-20079.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
0012
Detects repeated suspicious network requests, including non-standard HTTP methods and URI structures, as well as TLS SNI anomalies, targeting the internal sales portal 'agent.3bb.co.th'. The rule triggers when a threshold of 20 requests within a 60-second window is reached from a single source, indicating likely automated reconnaissance or vulnerability scanning activity.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
003
This rule detects HTTP GET requests resulting in the download of an Android Package (.apk) file where the host is not a known official Google Play or reputable third-party application distribution source. It further validates the detection by inspecting the HTTP response headers for the specific Android application package MIME type and the response body for indicators commonly associated with fake branded application portals.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
101
This rule detects HTTP GET requests resulting in the download of an Android Package (.apk) file where the host is not a known official Google Play or reputable third-party application distribution source. It further validates the detection by inspecting the HTTP response headers for the specific Android application package MIME type and the response body for indicators commonly associated with fake branded application portals.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects outbound network traffic attempting to access lookalike subdomains mimicking Okta or Microsoft 365 identity provider login pages. This behavior is associated with adversary-in-the-middle (AiTM) phishing campaigns, such as those attributed to UNC6671, where attackers use spoofed infrastructure to capture user credentials and session tokens.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects outbound network traffic attempting to access lookalike subdomains mimicking Okta or Microsoft 365 identity provider login pages. This behavior is associated with adversary-in-the-middle (AiTM) phishing campaigns, such as those attributed to UNC6671, where attackers use spoofed infrastructure to capture user credentials and session tokens.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects potential unauthenticated Remote Code Execution (RCE) exploitation attempts targeting the IKEv2/ISAKMP VPN service on WatchGuard Firebox devices (CVE-2025-14733). The rule monitors UDP traffic on standard IKE ports 500 and 4500, looking for specific payload patterns and elevated data sizes consistent with exploitation attempts, coupled with a threshold to reduce noise.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
006
Detects outbound HTTP requests to the Telegram Bot API associated with the malicious 'indexed-btree' npm package. The rule specifically monitors for hardcoded Telegram bot tokens and chat IDs used for data exfiltration.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
000
Detects outbound network traffic attempting to exfiltrate data to Slack or Telegram APIs using hardcoded bot tokens or channel identifiers associated with the 'indexed-btree' malware campaign.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects outbound network traffic attempting to exfiltrate data to Slack or Telegram APIs using hardcoded bot tokens or channel identifiers associated with the 'indexed-btree' malware campaign.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
000
Detects outbound HTTP POST requests to known public Ethereum RPC gateways (Alchemy and Infura) containing embedded, hardcoded API keys or references to specific contract addresses associated with the 'indexed-btree' malware campaign. This pattern indicates a compromised host leveraging legitimate Web3 infrastructure for Command and Control (C2) communication.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects outbound HTTP POST requests to known public Ethereum RPC gateways (Alchemy and Infura) containing embedded, hardcoded API keys or references to specific contract addresses associated with the 'indexed-btree' malware campaign. This pattern indicates a compromised host leveraging legitimate Web3 infrastructure for Command and Control (C2) communication.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
000
Detects network activity related to the SilverFox modular malware framework, including relay/dispatcher discovery, contact with known C2 infrastructure (noah-ssh.com.cn and Cloudflare Workers), and specific HTTP response patterns associated with its relay discovery process.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
101
Detects outbound HTTP requests to known domains or domains following a specific URI pattern associated with the delivery of SilverFox malware payloads.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects network traffic (TLS SNI or HTTP Host) to known domains associated with Adversary-in-the-Middle (AiTM) phishing campaigns. These domains mimic passkey, SSO, or account security portals to steal credentials and session cookies.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects incoming HTTP requests to the WSO2 admin API endpoint that utilize a JSON Web Token (JWT) with the 'alg=none' algorithm, indicating an attempt to bypass authentication via JWT token forgery (CVE-2026-5430).
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects attempts to exploit a vulnerability in WSO2 API Manager and Traffic Manager that allows for authentication bypass by utilizing a malformed JWT with the 'alg=none' header. Attackers can leverage this to impersonate users or bypass security controls by providing a crafted Bearer token in the Authorization header.
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects high-frequency outbound TCP connection attempts from a WSO2 API Gateway or Traffic Manager host to multiple sensitive internal management and administrative ports (22, 445, 3389, 5985, 5986). This behavior is indicative of a compromised gateway being used for lateral movement across the network.
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects network traffic directed towards Microsoft Graph API that utilizes the 'python-httpx' User-Agent. This combination is often associated with automated scripts, potentially used by adversaries (e.g., Storm-3121/Storm-3032) for automated data collection and exfiltration from Microsoft 365 environments.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects unauthorized exploitation attempts against the LiteLLM Model Context Protocol (MCP) endpoint. The rule monitors for a specific malformed Authorization header pattern (short, non-standard token) associated with CVE-2026-59822, indicating potential vulnerability scanning or exploitation of the service.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
006
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