Detections

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

5,875 detections

Detects network connections from a node.js process to a known C2 server address (87.236.177.9:3000) used by DPRK-linked threat actors.
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Elgonad .@elgonad
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Detections.ai Community
9 months ago
4184
This rule detects network connections to known cryptocurrency mining pools or domains associated with cryptocurrency mining activities. It specifically looks for keywords like 'miningpool', 'stratum', 'xmr', 'ethash', 'moneropool' in the remote URL or specific IP addresses like 'connect.moneropool.com' and 'pool.supportxmr.com'. This activity often indicates unauthorized resource hijacking (cryptojacking) on the affected device.
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Information hacker@Informationhacker
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Detections.ai Community
9 months ago
290207
Detects processes, other than legitimate web browsers or the official Telegram client, making DNS queries for the Telegram Bot API. This behavior is indicative of malware using Telegram for command-and-control (C2) or data exfiltration, as seen in a campaign leveraging Amnesia RAT.
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Tim Peck@timpeck
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Detections.ai Community
9 months ago
50101
This rule detects common chromium browser processes establishing outbound network connections to known C2 domains associated with malicious 'ChatGPTStealer' infostealer extension. Detections by this rule indicates a high likelihood that a malicious chromium infostealer extension is currently or had been installed on an endpoint.
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Zachary McManus@CrimZM
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Detections.ai Community
10 months ago
591320
Detects large volumes of outbound data transfers using the Cyberduck application to known cloud storage providers. The Qilin ransomware group has been observed using Cyberduck for data exfiltration.
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Georg Lauenstein@gsec
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SecOps Signals
10 months ago
10246
This rule detects outbound network connections initiated by 'chrome.exe' to a predefined list of known Command and Control (C2) domains over HTTPS (port 443). This indicates potential communication with malicious infrastructure.
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Awais Munir@iawais
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Detections.ai Community
10 months ago
12512956
This rule detects network connections initiated by 'tor.exe' or 'meek-client.exe', indicating potential use of the Tor anonymity network. It enriches the events with process and certificate information to provide context about the initiating process and its trust status.
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Information hacker@Informationhacker
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Detections.ai Community
10 months ago
511270
This rule detects common chromium browser processes establishing outbound network connections to known C2 domains associated with malicious 'ChatGPTStealer' infostealer extension. Detections by this rule indicates a high likelihood that a malicious chromium infostealer extension is currently or had been installed on an endpoint.
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Zachary McManus@CrimZM
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Detections.ai Community
10 months ago
9182
Detects Microsoft Word making an outbound network connection and subsequently spawning the Equation Editor process (EQNEDT32.EXE). This behavior is associated with the exploitation of CVE-2017-11882 via a malicious remote template.
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Ethan Andrews@eandrews
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Federal Signal Detections
10 months ago
2039
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.
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Ethan Andrews@eandrews
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Federal Signal Detections
10 months ago
7082
This detection identifies outbound network traffic to domains, IP addresses, or a specific port known to be associated with the PHALT#BLYX campaign's infrastructure. The campaign uses these for malware delivery and DCRat command and control (C2). The rule specifically looks for connections to known malicious IPs or domains, or connections on port 3535 (used by DCRat) originating from processes associated with the malware (staxs.exe, tybd7.exe, aspnet_compiler.exe).
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Mehulkumar Savajani@Msavajani
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Detections.ai Community
10 months ago
584339
Detects outbound network traffic with a User-Agent header indicating the use of the Rust 'reqwest' HTTP client library. This User-Agent is used by the RustyWater implant, associated with the MuddyWater APT group, for command and control (C2) communications.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
50119
This rule detects activities associated with the VVS Stealer malware, as described in the Palo Alto Networks Unit 42 blog. It identifies the malware through specific SHA256 hashes of known VVS Stealer executables, network connections to hardcoded Discord webhook URLs used for exfiltration, persistence mechanisms via creation of executables in Windows startup folders, creation of '_vault.zip' files (likely containing stolen data), and suspicious Discord-related process activity indicative of the stealer's operation.
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doyou know@doyouknow
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Detections.ai Community
10 months ago
686473
Detects network communication patterns
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Daniel Jeremiah@daniyyell
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Detections.ai Community
10 months ago
0016
This rule detects network connections from devices to a predefined list of known malicious domains. It identifies attempts by internal systems to communicate with command and control servers, phishing sites, or other infrastructure associated with threat actors.
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Ankit Mehta@Secvyn
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Detections.ai Community
10 months ago
511305
This rule detects outbound network connections to domains associated with the Tykit malware family or domains matching a specific regular expression pattern often used for credential harvesting (e.g., 'loginmicr.s*.cc'). It leverages an external intelligence feed for known Tykit domains and a regex for common phishing/credential theft patterns.
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Steven Lim@KQLWizard
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SlimKQL
10 months ago
2761,198
This rule detects potential command and control (C2) activity by identifying devices that first query 'api.ipify.org' (often used by malware to determine external IP addresses) and then subsequently establish an outbound network connection on port 7712 to a non-private IP address. This sequence of events can indicate a compromised host attempting to beacon out to a C2 server after initial reconnaissance.
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Steven Lim@KQLWizard
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SlimKQL
10 months ago
276865
Detects outbound network connections to a known PCPcat C2 server IP address on specific ports used for API communication, reverse tunneling, and payload distribution. This rule identifies potential command and control activity and data exfiltration attempts by monitoring network traffic to a hardcoded malicious IP and associated non-standard ports.
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Eran Yosef@Zaku7892
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Detections.ai Community
10 months ago
150155
Detects when legitimate .NET utilities, often abused for process hollowing, make outbound network connections. This is anomalous behavior and may indicate that the process has been injected with malicious code to bypass defenses.
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Tim Peck@timpeck
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Detections.ai Community
11 months ago
90149
Detects outbound network connections to a list of IP addresses identified as high-confidence command and control (C2) infrastructure for the Clop ransomware group. This infrastructure has been observed across multiple campaigns, including the exploitation of vulnerabilities like CVE-2025-61882 (Oracle E-Business Suite), CVE-2023-34362 (MOVEit), and CVE-2023-0669 (GoAnywhere).
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Georg Lauenstein@gsec
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Detections.ai Community
11 months ago
51130
This rule detects PowerShell processes that are initiated by a LOLBAS binary and subsequently establish an outbound network connection to a public IP address. It leverages an external LOLBAS JSON data source to identify suspicious parent processes. This behavior could indicate an adversary using a Living Off The Land Binary or Script (LOLBAS) to execute PowerShell for malicious purposes, such as command and control or data exfiltration.
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Benjamin Zulliger@benscha
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Detections.ai Community
11 months ago
996608
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