Detections

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

1,748 detections

This rule detects potential reflective code injection or in-memory loading (fileless) where a DLL or PE image is loaded by mshta.exe or powershell.exe, but the module load event lacks a valid file path on disk (or indicates a device path). This behavior is often associated with the execution of malicious payloads such as the Amatera loader, where payloads are executed directly in memory to evade file-based security detections.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
103
Detects modifications or creation of InprocServer32 COM registry keys by suspicious processes like mshta.exe or powershell.exe, which is indicative of COM Hijacking for persistence or privilege escalation.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
003
Detects modifications or creation of InprocServer32 COM registry keys by suspicious processes like mshta.exe or powershell.exe, which is indicative of COM Hijacking for persistence or privilege escalation.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
003
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
000
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
000
Detects instances where a RedTail malware variant enumerates processes via the /proc filesystem to identify and terminate previous instances of itself using a kill signal.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
000
Detects attempts to access or create copies of the Active Directory 'ntds.dit' database or the Windows Security Account Manager (SAM) registry hive using unauthorized processes. Attackers often target these files to extract credential hashes from Domain Controllers or local systems.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
This rule detects processes accessing '/proc/self/status' to read the 'TracerPID' field. Malware often uses this technique to detect if it is being debugged or traced by security analysis tools, allowing the process to terminate or change behavior to avoid analysis.
avatar
Ankit Mehta@Secvyn
avatar
Hunters
2 months ago
001
Detects potential exploitation attempts involving the NVIDIA global shared memory object (GreenSection) identified as \BaseNamedObjects\{52813408-3561-4705-820a-2b3b78be92ba}. The rule monitors for processes performing memory section operations (e.g., NtMapViewOfSection) in conjunction with driver-related command-line indicators or associated malicious process names, which may indicate an attempt to trigger a crash in nvoglv64.dll or exploit driver-level vulnerabilities.
avatar
Amit Ambekar@Amit007
avatar
Detections.ai Community
2 months ago
508
Detects the loading of Linux kernel modules using insmod or modprobe from non-standard, writable directories such as /tmp, /var/tmp, /dev/shm, /home, /root, or /opt. This behavior is highly indicative of an adversary attempting to install a malicious kernel module or rootkit to gain persistence or privilege escalation, while bypassing standard package management paths.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
001
This rule detects potentially malicious memory manipulation and thread execution activity originating from the ERAAgent.exe process. It specifically identifies when ERAAgent.exe calls VirtualProtect or VirtualAlloc to set memory as PAGE_EXECUTE_READWRITE, followed shortly by a CreateThread or CreateRemoteThread operation. This behavior is indicative of process injection or reflective code loading, where an executable image is manually mapped into memory and executed, bypassing traditional file-based detection.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects ERAAgent.exe performing suspicious dynamic API resolution for functions commonly used by the SLEEPWALKER malware (VirtualProtect, SetSecurityDescriptorDacl, and CryptGenRandom). By resolving these functions at runtime via GetProcAddress rather than including them in the static import table, the malware attempts to evade detection and analysis.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects modifications to the PostgreSQL configuration file 'pg_hba.conf' closely followed by a reload command (via pg_ctl or postgres processes). This behavior is indicative of an attacker attempting to modify authentication or connection access controls for a database.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
101
Detects the use of common Linux command-line utilities (sed, grep, awk, bash, sh) to perform operations on sensitive system logs or shell history files. The rule targets command strings indicative of log modification, filtering, or removal of audit trails, often associated with an attacker attempting to conceal malicious activity.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects network connections from common Linux system binaries (agetty, atd, polkitd, crond) to identified suspicious external domains. These binaries typically do not communicate with external internet services, suggesting potential process masquerading or compromise.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects modifications or creation of InprocServer32 COM registry keys by suspicious processes like mshta.exe or powershell.exe, which is indicative of COM Hijacking for persistence or privilege escalation.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects periodic screen capture activity performed by Node.js or Electron-based processes, correlated with subsequent outbound network connections to public IP addresses within a short timeframe. This behavior is indicative of the JSCeal malware's surveillance and exfiltration module, where local reconnaissance via screenshotting is followed by data transmission.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
001
Detects when a Node.js process initiates a low-level keyboard hook (WH_KEYBOARD_LL or WH_KEYBOARD) while running from common user-writable directories, which may indicate malicious keylogging activity by a suspicious process.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
001
This rule detects the presence of specific file hashes known to be associated with backdoored software builds, specifically related to recent supply chain compromises affecting South Korean software vendors (e.g., HAProxy builds). It monitors device file events, process initiation, and identity logon events to identify systems that have deployed, executed, or been accessed by these malicious binaries.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
002
This rule detects potential web skimmer activity where a user's browser performs a network connection to known payload delivery hosts (e.g., paste.sh or Google Sheets API) followed by a clipboard modification event on the same device within a one-hour window. This behavior is consistent with malicious scripts attempting to replace copied cryptocurrency wallet addresses with an attacker-controlled address.
avatar
Ankit Mehta@Secvyn
avatar
Hunters
2 months ago
000
Page 25 of 84