Detections

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

175 detections

Detects the use of the undocumented NTAPI function EtwpCreateEtwThread within a thread creation call trace. This function is often abused by shellcode loaders to execute malicious code within a target process while attempting to evade standard EDR detection mechanisms.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects the invocation of the undocumented ntdll function 'EtwpCreateEtwThread', which is used as an alternative to standard thread-creation APIs like CreateThread or CreateRemoteThread. This technique is often associated with advanced shellcode execution, such as MovieReaper, designed to evade common thread-creation monitoring sensors.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects the invocation of the undocumented ntdll function 'EtwpCreateEtwThread', which is used as an alternative to standard thread-creation APIs like CreateThread or CreateRemoteThread. This technique is often associated with advanced shellcode execution, such as MovieReaper, designed to evade common thread-creation monitoring sensors.
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Arnold Chan@slaz
Defender - KQL
1 month ago
002
Detects the invocation of the undocumented ntdll function 'EtwpCreateEtwThread', which is used as an alternative to standard thread-creation APIs like CreateThread or CreateRemoteThread. This technique is often associated with advanced shellcode execution, such as MovieReaper, designed to evade common thread-creation monitoring sensors.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects evidence of the MovieReaper loader technique. This behavior involves registering or rewriting Vectored Exception Handlers, allocating memory with EXECUTE_READWRITE protection, and triggering debug-break exceptions to redirect execution into raw NtProtectVirtualMemory syscalls, effectively bypassing user-mode API hooks often used for monitoring.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects execution artifacts of the MovieReaper stage 2 implant, specifically its capability to parse and load COFF modules into memory without writing them to disk. The rule monitors process command lines for 'module_init' and identifies suspicious API activity related to memory-based module loading, such as reflective DLL loading or remote thread creation.
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects execution artifacts of the MovieReaper stage 2 implant, specifically its capability to parse and load COFF modules into memory without writing them to disk. The rule monitors process command lines for 'module_init' and identifies suspicious API activity related to memory-based module loading, such as reflective DLL loading or remote thread creation.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
This rule detects processes manually resolving API function addresses by traversing the Process Environment Block (PEB) Ldr structure or parsing module export tables. This technique is often used by malicious code to resolve Windows API functions dynamically without relying on standard LoadLibrary or GetProcAddress calls, effectively evading common API-hooking based monitoring.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects the invocation of the undocumented ntdll function 'EtwpCreateEtwThread', which is used as an alternative to standard thread-creation APIs like CreateThread or CreateRemoteThread. This technique is often associated with advanced shellcode execution, such as MovieReaper, designed to evade common thread-creation monitoring sensors.
avatar
Arnold Chan@slaz
avatar
Hunters
1 month ago
001
Detects the invocation of the undocumented ntdll function 'EtwpCreateEtwThread', which is used as an alternative to standard thread-creation APIs like CreateThread or CreateRemoteThread. This technique is often associated with advanced shellcode execution, such as MovieReaper, designed to evade common thread-creation monitoring sensors.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
1 month ago
001
Detects evidence of the MovieReaper loader technique. This behavior involves registering or rewriting Vectored Exception Handlers, allocating memory with EXECUTE_READWRITE protection, and triggering debug-break exceptions to redirect execution into raw NtProtectVirtualMemory syscalls, effectively bypassing user-mode API hooks often used for monitoring.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
1 month ago
101
Detects evidence of the MovieReaper loader technique. This behavior involves registering or rewriting Vectored Exception Handlers, allocating memory with EXECUTE_READWRITE protection, and triggering debug-break exceptions to redirect execution into raw NtProtectVirtualMemory syscalls, effectively bypassing user-mode API hooks often used for monitoring.
avatar
Arnold Chan@slaz
avatar
Hunters
1 month ago
000
Detects evidence of the MovieReaper loader technique. This behavior involves registering or rewriting Vectored Exception Handlers, allocating memory with EXECUTE_READWRITE protection, and triggering debug-break exceptions to redirect execution into raw NtProtectVirtualMemory syscalls, effectively bypassing user-mode API hooks often used for monitoring.
avatar
Arnold Chan@slaz
Defender - KQL
1 month ago
000
Detects evidence of the MovieReaper loader technique. This behavior involves registering or rewriting Vectored Exception Handlers, allocating memory with EXECUTE_READWRITE protection, and triggering debug-break exceptions to redirect execution into raw NtProtectVirtualMemory syscalls, effectively bypassing user-mode API hooks often used for monitoring.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
1 month ago
000
Detects execution artifacts of the MovieReaper stage 2 implant, specifically its capability to parse and load COFF modules into memory without writing them to disk. The rule monitors process command lines for 'module_init' and identifies suspicious API activity related to memory-based module loading, such as reflective DLL loading or remote thread creation.
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Arnold Chan@slaz
Defender - KQL
1 month ago
000
This rule detects instances of a process named 'firefox.exe' that is executing from a directory other than the standard 'Mozilla Firefox' program folders. When this masquerading process loads critical system DLLs like 'kernel32.dll' or 'ntdll.dll', it flags potential dynamic API resolution activity commonly associated with BabylonRAT and similar malware that attempts to hide its capabilities by resolving system functions at runtime.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects the use of the MinHook library to hook CreateThread and spoof the thread start address as AnimateWindow, a technique used by the SparroWocky malware to conceal its true thread origin from security monitoring tools.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
000
Detects UNC3569/GRAYRABBIT shellcode combining call/pop self-location, PEB InLoadOrderModuleList walk, and the specific XOR-then-ROR8 export-name hashing loop observed in the GRAYRABBIT loader chain, requiring multiple distinctive elements together to reduce false positives on generic shellcode idioms
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects UNC3569/GRAYRABBIT shellcode combining call/pop self-location, PEB InLoadOrderModuleList walk, and the specific XOR-then-ROR8 export-name hashing loop observed in the GRAYRABBIT loader chain, requiring multiple distinctive elements together to reduce false positives on generic shellcode idioms
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects the loading of compression libraries (such as lzma.dll or 7z.dll) by ERAAgent.exe followed by suspicious process or thread activity (e.g., remote thread creation, memory allocation). This pattern is often associated with the staging and execution of malicious payloads in memory.
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Arnold Chan@slaz
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Hunters
2 months ago
001
Detects the loading of compression libraries (such as lzma.dll or 7z.dll) by ERAAgent.exe followed by suspicious process or thread activity (e.g., remote thread creation, memory allocation). This pattern is often associated with the staging and execution of malicious payloads in memory.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
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