Detections

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

5,158 detections

Detects periodic POST requests to an external endpoint containing specific request parameters (name, value, type) and a 'User-token' header, consistent with the expected beaconing intervals of the curlRAT malware (12h or 30s fast-poll).
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects a multi-stage browser-based web skimming attack. The rule identifies a specific sequence of network activity: a device fetching an obfuscated loader script from 'paste.sh', followed by retrieving payload fragments from the 'Google Sheets Visualization API', and concluding with network interactions with crypto-transaction services 'SwapZone.io' or 'SimpleSwap.io', characteristic of a browser-based wallet-drainer campaign.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
2 months ago
000
Detects a multi-stage browser-based web skimming attack. The rule identifies a specific sequence of network activity: a device fetching an obfuscated loader script from 'paste.sh', followed by retrieving payload fragments from the 'Google Sheets Visualization API', and concluding with network interactions with crypto-transaction services 'SwapZone.io' or 'SimpleSwap.io', characteristic of a browser-based wallet-drainer campaign.
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Ankit Mehta@Secvyn
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Hunters
2 months ago
000
Detects browser-based network requests to the Google Sheets Visualization API (gviz/tq) that appear to be used for fetching malicious JavaScript payloads from public Google Sheets. The rule specifically identifies instances where a process initiates these requests without any corresponding active browser session associated with standard Google Docs or Sheets editing activity.
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Ankit Mehta@Secvyn
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Hunters
2 months ago
000
This rule detects potential browser-based wallet address substitution attacks by monitoring for a specific sequence of network connections within a single browser process. It looks for connections to cryptocurrency swap platforms (SimpleSwap/SwapZone) closely followed by the retrieval of an external loader script (paste.sh) and a Google Sheets Visualization API payload, which is a known technique for injecting malicious scripts that intercept and modify XHR/fetch responses in the user's browser.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
2 months ago
000
This rule detects potential browser-based wallet address substitution attacks by monitoring for a specific sequence of network connections within a single browser process. It looks for connections to cryptocurrency swap platforms (SimpleSwap/SwapZone) closely followed by the retrieval of an external loader script (paste.sh) and a Google Sheets Visualization API payload, which is a known technique for injecting malicious scripts that intercept and modify XHR/fetch responses in the user's browser.
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Ankit Mehta@Secvyn
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Hunters
2 months ago
000
This rule detects potential browser-based manipulation or phishing campaigns where a user visits a known loader script host (paste.sh) and subsequently visits cryptocurrency trading sites (SimpleSwap, SwapZone) within a short time window. This behavior is indicative of an injected script modifying the browser's view of trading sites to display deceptive 'Loyalty Bonus' or discount banners to lure users into transactions.
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Ankit Mehta@Secvyn
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Hunters
2 months ago
000
This rule detects potential browser-based manipulation or phishing campaigns where a user visits a known loader script host (paste.sh) and subsequently visits cryptocurrency trading sites (SimpleSwap, SwapZone) within a short time window. This behavior is indicative of an injected script modifying the browser's view of trading sites to display deceptive 'Loyalty Bonus' or discount banners to lure users into transactions.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
2 months ago
000
Detects a multi-stage browser-based web skimming attack. The rule identifies a specific sequence of network activity: a device fetching an obfuscated loader script from 'paste.sh', followed by retrieving payload fragments from the 'Google Sheets Visualization API', and concluding with network interactions with crypto-transaction services 'SwapZone.io' or 'SimpleSwap.io', characteristic of a browser-based wallet-drainer campaign.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
000
Detects the specific C2 handshake pattern associated with HVNC (Hidden Virtual Network Computing) remote access trojans. The rule monitors for a unique sequence of markers, specifically CLIENT_ID, COMPUTER, IDENTIFIER_CHANNEL, and a version string, indicating a malware-specific communication protocol.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects the specific C2 handshake pattern associated with HVNC (Hidden Virtual Network Computing) remote access trojans. The rule monitors for a unique sequence of markers, specifically CLIENT_ID, COMPUTER, IDENTIFIER_CHANNEL, and a version string, indicating a malware-specific communication protocol.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects network connections to known suspicious infrastructure, including specific domains associated with Session, catbox.moe, or targeted npm registry and GitHub API queries initiated by common command-line utilities. This behavior often suggests adversary communication, data staging, or potential tool/malware delivery.
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Montaser Ismail@M0nt3x
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Detections.ai Community
2 months ago
507
Detects Server-Side Request Forgery (SSRF) attempts originating from the Grafana MCP (Model Context Protocol) process. The rule specifically monitors for instances where the 'grafana_api_request' tool is used in conjunction with a 'X-Grafana-URL' header targeting cloud metadata IP ranges (169.254.0.0/16), or where the host attempts to resolve GCP metadata domains ('metadata.google.internal'). This behavior is indicative of an attacker attempting to access cloud provider instance metadata to exfiltrate security credentials.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
This rule monitors for internal network connection attempts initiated by the 'mcp-grafana' process to destinations it has not contacted in the previous 14 days. By establishing a baseline of legitimate data source connections, the rule alerts when the process performs a rapid fan-out or discovery against multiple new internal hosts, which may indicate unauthorized network reconnaissance or lateral movement attempts by the Grafana service.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
Detects evidence of malicious file tampering on public CDNs (bootcdn.net, bootcss.com, staticfile.org) associated with the Funnull campaign. The rules identify specific malicious file hashes and anomalous oversized file sizes that indicate the presence of injected malicious loaders within common JavaScript libraries.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects evidence of malicious file tampering on public CDNs (bootcdn.net, bootcss.com, staticfile.org) associated with the Funnull campaign. The rules identify specific malicious file hashes and anomalous oversized file sizes that indicate the presence of injected malicious loaders within common JavaScript libraries.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
Detects abnormally long request URIs, often indicating fuzzing or buffer-overflow probing.
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Anmol Vats@jerry
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Detection Engineers
2 months ago
007
This rule identifies a discrepancy between actual network connections processed by HAProxy and the corresponding entries in its server-side logs. Such inconsistencies can indicate the presence of a malicious backdoor compiled into or injected into the HAProxy process, designed to facilitate C2 traffic while evading standard monitoring by suppressing or omitting logging for those connections.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
This rule identifies a discrepancy between actual network connections processed by HAProxy and the corresponding entries in its server-side logs. Such inconsistencies can indicate the presence of a malicious backdoor compiled into or injected into the HAProxy process, designed to facilitate C2 traffic while evading standard monitoring by suppressing or omitting logging for those connections.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects periodic POST requests to an external endpoint containing specific request parameters (name, value, type) and a 'User-token' header, consistent with the expected beaconing intervals of the curlRAT malware (12h or 30s fast-poll).
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
Detects periodic POST requests to an external endpoint containing specific request parameters (name, value, type) and a 'User-token' header, consistent with the expected beaconing intervals of the curlRAT malware (12h or 30s fast-poll).
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
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