Detections

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

18,132 detections

Detects the execution of the LANDFALL spyware's SELinux policy manipulation helper (`l.so`). The spyware's loader (`b.so`) sets a `PRELOAD_PATH` environment variable pointing to `l.so` and uses `LD_PRELOAD` to inject another payload into the benign `/system/bin/id` process. This behavior is specific to the "interactive" execution mode of the spyware.
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nomit vyas@xoxo
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Detections.ai Community
4 months ago
107
Detects behavior indicative of the AMOS (Atomic macOS) infostealer, where a malicious process uses 'osascript' to display a fake System Preferences password prompt to the user and then attempts to validate the harvested credentials using 'dscl -authonly'.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects execution of macOS.Gaslight malware by identifying specific function calls within process command lines, specifically 'SecTrustSetAnchorCertificatesOnly' for certificate pinning, 'SCDynamicStoreCopyProxies' for proxy awareness, and 'CCRandomGenerateBytes' for cryptographical operations. These behaviors are typical of the implant's efforts to maintain encrypted C2 communication while frustrating network inspection tools.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects consecutive successful AWS ConsoleLogin events for the same user originating from distinct IP addresses within a 10-minute window. This behavior is indicative of a session-based attack such as Adversary-in-the-Middle (AiTM) where session cookies are intercepted and replayed, allowing an attacker to bypass traditional authentication or multi-factor authentication controls.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects a multi-stage in-memory .NET DLL loader chain where an executable from AppData\Roaming mimics legitimate software (TuglaInsaatci) to load malicious DLLs ('Optimax.dll' and 'System Optimizer Ultimate.dll') entirely in memory. This behavior is indicative of the FortiBleed steganographic loader campaign, which aims to evade disk-based security controls.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects a potential Conditional Access bypass, often associated with Storm-2372, where a device is registered and immediately followed by a PRT or deviceToken-authenticated sign-in to sensitive cloud applications within one hour. This behavior indicates the usage of non-TPM-attested 'phantom' devices to circumvent device-based security requirements.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects instances where the DonutLoader utility performs in-memory .NET payload execution. It identifies suspicious behavior by tracking the loading of clr.dll into a process that is not a recognized .NET host, concurrent with evidence of process hollowing techniques such as memory unmapping and process writing (NtUnmapViewOfSection, WriteProcessMemory, ResumeThread).
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects a process performing a file access check for 'sbiedll.dll' (indicative of a Sandboxie presence check) followed by the immediate termination of the same process within a 2-minute window. This behavior is highly characteristic of malware attempting to detect if it is being analyzed in a sandbox environment and aborting execution accordingly.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
105
Detects the presence of SVG files containing obfuscated JavaScript and redirection logic. This technique is used by phishing campaigns, such as Tykit, to redirect victims to malicious sites.
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nomit vyas@xoxo
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Detections.ai Community
4 months ago
007
Detects processes using prctl with PR_SET_NAME to rename themselves to systemd-userdbd, a technique used by the MYRA RAT (Operation Friday Harvest) to masquerade as a legitimate system daemon and evade process-tree inspection. The rule looks for processes with 'systemd-userdbd' in their product name or in specific suspicious folders, or processes named 'systemd-userdbd' initiated by 'node' or 'npm'. It also identifies process name changes or modifications to process primary tokens that include 'systemd-userdbd'.
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Ethan Andrews@eandrews
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Federal Signal Detections
4 months ago
007
Detects potential DLL hijacking persistence by identifying modifications to registry values containing executable or library files that point to locations outside standard Windows system directories (System32 or SysWow64), subsequently joined with the execution of legitimate binary proxies known to be abused for side-loading like rundll32.exe or regsvcs.exe.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
704
Detects the use of command-line arguments associated with Windows token impersonation techniques (e.g., 'SeImpersonate', 'ImpersonateLoggedOnUser') initiated by common command-line interpreters (powershell.exe, cmd.exe, wmic.exe). This activity is often indicative of an adversary attempting to elevate privileges by stealing or manipulating access tokens.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
004
Identifies logins from known malicious VPN/Proxy exit nodes geolocated in Canada, specifically attempting to bypass geographic conditional access rules. This rule joins location data with threat intelligence indicators to detect suspicious access patterns.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
2011
Detects the use of the Program Compatibility Assistant (pcalua.exe) to proxy the execution of mshta.exe. This LOLBIN evasion technique is actively used by ClickFix loaders to execute remote HTA payloads while evading process-based detections.
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Ethan Andrews@eandrews
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Federal Signal Detections
5 months ago
4040
Detects potential Remcos RAT loader activity involving process hollowing or injection into browser processes. This rule specifically looks for common browser executables (iexplore.exe, chrome.exe, firefox.exe) where the initiating parent process is 'Optimax.dll' or contains 'SystemOptimizer', which are indicators associated with the Remcos RAT loader.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
007
This rule detects the suspicious loading of 'msimg32.dll' by 'consent.exe' from non-standard directories, specifically targeting temporary folders often used by the Bumblebee malware loader. This behavior is indicative of DLL side-loading to execute malicious code within the context of a legitimate system process.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects anomalous activity involving the Windows consent.exe process, which handles User Account Control (UAC) elevation prompts. Specifically, this rule monitors for instances where consent.exe is spawned from the Temp folder, spawned by msiexec.exe from the Temp folder, or loads a suspicious version of msimg32.dll from a non-System32 directory. These behaviors are often indicative of UAC bypass attempts or DLL hijacking related to privilege escalation.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
This rule detects suspicious activities involving the Microsoft Edge browser (msedge.exe). It monitors for the spawning of known command-line utilities (e.g., cmd.exe, powershell.exe) by the browser process and the loading of DLLs that do not originate from expected Windows or Microsoft Edge installation directories. Additionally, it correlates these events with recent Microsoft Edge application crashes on the same host, which may indicate exploitation attempts.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects the execution of Ghostscript (gswin64c.exe, gswin32c.exe, or gs) spawned by ImageMagick binaries (magick.exe, convert.exe, or identify.exe) where the Ghostscript binary is located outside of standard program installation directories. This behavior is indicative of potential delegate hijacking or exploitation attempts where an adversary provides a malicious Ghostscript binary to ImageMagick.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
This rule detects suspicious activity involving Docker containers, specifically focusing on path traversal attempts via the 'docker cp' command, execution of potential proof-of-concept scripts, or the creation of specific marker files indicating attempts to interact with or escape from the containerized environment to the underlying host.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects anomalous, non-interactive Microsoft Graph sign-in activity consistent with the Payroll Pirate session hijacking campaign. The rule flags instances where the same user account authenticates via Microsoft Graph using the 'Firefox/131.0' user agent from multiple distinct source IP addresses within a 6-hour window, indicating potential stolen session token replay from distributed proxy infrastructure.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
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