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c1d20764ad
* use sequence scope instead of thread scope for "static: function" rules * use sequence scope instead of thread scope for "static: basic block" rules * make runtime linking rules more concise * doc: describe sequence scope * rename "sequence" scope to "span of calls" scope * Update anti-analysis/anti-av/check-for-sandbox-and-av-modules.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> * Update anti-analysis/anti-vm/vm-detection/check-for-windows-sandbox-via-device.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> * Update collection/get-geographical-location.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> * Update collection/file-managers/gather-classicftp-information.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> * Update collection/database/wmi/reference-wmi-statements.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> * Update collection/database/sql/reference-sql-statements.yml Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com> --------- Co-authored-by: Mike Hunhoff <mike.hunhoff@gmail.com>
25 lines
925 B
YAML
25 lines
925 B
YAML
rule:
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meta:
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name: resolve function by FNV-1a hash
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namespace: linking/runtime-linking
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authors:
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- still@teamt5.org
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description: known import name hashes calculated using the non-cryptographic FNV-1a hashing algorithm
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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::Obfuscated Files or Information::Indicator Removal from Tools [T1027.005]
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references:
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- https://blog.xorhex.com/blog/reddeltaplugxchangeup/
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features:
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- or:
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- number: 0x53b2070f = FNV(LoadLibraryA)
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- number: 0xfaba0065 = FNV(CloseHandle)
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- number: 0x03285501 = FNV(VirtualAlloc)
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- number: 0x820621f3 = FNV(VirtualProtect)
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- number: 0xf8f45725 = FNV(GetProcAddress)
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- number: 0xbdcac9ce = FNV(CreateFileA)
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- number: 0xafcab3c4 = FNV(CreateFileW)
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- number: 0x54fcc943 = FNV(ReadFile)
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- number: 0x2fa62ca8 = FNV(Sleep)
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