mirror of
https://github.com/mandiant/capa-rules
synced 2026-06-08 15:41:20 +00:00
JJ
90 lines
3.0 KiB
YAML
90 lines
3.0 KiB
YAML
rule:
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meta:
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name: execute shellcode via Windows callback function
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namespace: load-code/shellcode
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authors:
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- ervin.ocampo@mandiant.com
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- jakub.jozwiak@mandiant.com
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- still@teamt5.org
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description: Detect usage of various WinAPI functions that accept callback functions as parameters in order to execute arbitrary shellcode
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scopes:
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static: function
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dynamic: span of calls
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att&ck:
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- Defense Evasion::Reflective Code Loading [T1620]
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mbc:
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- Defense Evasion::Hijack Execution Flow::Abuse Windows Function Calls [F0015.006]
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references:
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- https://github.com/ChaitanyaHaritash/Callback_Shellcode_Injection
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- https://www.trendmicro.com/en_us/research/22/k/earth-preta-spear-phishing-governments-worldwide.html
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- http://ropgadget.com/posts/abusing_win_functions.html
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- https://github.com/aahmad097/AlternativeShellcodeExec/
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- https://osandamalith.com/2021/04/01/executing-shellcode-via-callbacks/
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- https://github.com/tlsbollei/Malware-Training/blob/main/Code%20Injection/LdrCallEnclave.cpp
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examples:
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- 10cd7afd580ee9c222b0a87ff241d306:0x10008BE0
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- 268d61837aa248c1d49a973612a129ce:0x1000CEC0
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- 4a2992b4c7a1573bf7c74065e3bf5b0d:0x1000D050
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- 43db867967c71bd3aaba9a9a3084e7fa:0x140001000
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features:
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- and:
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- match: allocate or change RWX memory
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- or:
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- api: AddPropSheetPageProc
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- api: CallWindowProc
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- api: CertEnumSystemStore
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- api: CertEnumSystemStoreLocation
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- api: CreateTimerQueueTimer
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- api: CryptEnumOIDInfo
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- and:
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- api: DPA_Create
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- api: DPA_SetPtr
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- api: DPA_EnumCallback
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- and:
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- api: DSA_Create
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- api: DSA_InsertItem
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- api: DSA_EnumCallback
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- api: DrawState
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- api: EnumCalendarInfo
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- api: EnumCalendarInfoEx
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- api: EnumChildWindows
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- api: EnumDateFormats
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- api: EnumDesktops
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- api: EnumDesktopWindows
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- api: EnumDirTree
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- api: EnumDisplayMonitors
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- api: EnumFontFamilies
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- api: EnumFontFamiliesEx
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- api: EnumFonts
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- api: EnumLanguageGroupLocales
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- and:
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- or:
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- api: GetDC
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- api: GetDCEx
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- api: EnumObjects
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- api: EnumProps
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- api: EnumPropsEx
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- api: EnumPwrSchemes
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- api: EnumResourceTypes
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- api: EnumSystemCodePages
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- api: EnumSystemGeoID
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- api: EnumSystemGeoNames
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- api: EnumSystemLanguageGroups
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- api: EnumSystemLocales
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- api: EnumThreadWindows
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- api: EnumTimeFormats
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- api: EnumUILanguages
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- api: EnumWindows
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- api: EnumWindowStations
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- api: EnumerateLoadedModules
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- api: GrayString
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- api: ImmEnumInputContext
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- api: LdrCallEnclave
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- api: LineDDA
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- and:
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- api: SymInitialize
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- or:
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- api: SymEnumProcesses
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- api: SymRegisterCallback
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- api: VerifierEnumerateResource
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