Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects the OXLOADER malware's technique of hijacking the CRT initializer table. It identifies an unsigned process loading a randomly named .ocx file (a copy of dui70.dll with an injected .xtext section) from a temporary or download path. The detection is further refined by correlating this with multiple VirtualAlloc calls, consistent with the malware's three rolling-XOR decryption stubs activated via the RegisterClipboardFormatW CRT initializer hook.
Detects process doppelganging using NTFS transactional operations
This rule detects Portable Executable (PE) files that contain a cluster of API calls commonly associated with process doppelganging techniques, specifically targeting the 'spoolsv.exe' process. The presence of 'NtCreateTransaction', 'CreateFileTransacted', 'NtCreateSection', 'NtCreateProcessEx', and 'NtCreateThreadEx' in conjunction with 'spoolsv.exe' suggests an attempt to inject malicious code into a legitimate process using advanced evasion techniques.
This rule detects potential Process Doppelganging attempts by looking for specific Windows API calls related to Transactional NTFS (TxF) within HTTP traffic. Specifically, it looks for the presence of "NtCreateTransaction" and "NtCreateSection" in the file data of HTTP responses, indicating a payload that might be attempting to leverage TxF for process creation manipulation.
Detects a sequence of events indicative of Process Doppelgänging, a technique used by APT37. This rule identifies a process creating a legitimate Windows utility and then immediately injecting code into it, which is characteristic of creating a process in a suspended state for injection.
'This query detects Process Doppelganging, a technique that calls several APIs related to NTFS transactions which allow to substitute the PE content before the process is even created.
Ref: https://attack.mitre.org/techniques/T1055/013/'
Ref: https://attack.mitre.org/techniques/T1055/013/'
