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Detect AutoIt source content #76

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Detect AutoIt source content #76

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27 changes: 27 additions & 0 deletions sflock/ident.py
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Original file line number Diff line number Diff line change
Expand Up @@ -523,6 +523,32 @@ def nodejs(f):
if count >= 3:
return "nodejs"

autoit_patterns = {
# Word boundaries matter: "EndFunc"/"SetError" etc. are substrings of
# unrelated identifiers like "appendFunction"/"resetError".
"Func Block Syntax": rb"\bEndFunc\b",
"AutoIt-only Builtins": (
rb"\b(?:DllStruct(?:Create|SetData|GetData)|FileInstall|"
rb"AdlibRegister|HotKeySet|StringToBinary|BinaryToString|SetError)\b"
),
"Macro Syntax": (
rb"@(?:(?:Temp|Script|Windows|System|AppData|ProgramFiles)Dir|Comspec|OSVersion)\b"
),
}
autoit_compiled_patterns = {category: re.compile(pattern, re.I) for category, pattern in autoit_patterns.items()}


def autoit(f):
"""Detect decompiled/plaintext AutoIt v3 source regardless of extension."""
if not f.contents:
return

hits = sum(1 for pattern in autoit_compiled_patterns.values() if pattern.search(f.contents))

if hits >= 2:
return "autoit"


def javascript(f):
JS_STRS = [
b"var ",
Expand Down Expand Up @@ -726,6 +752,7 @@ def identify(f, check_shellcode: bool = False):
office_webarchive,
office_activemime,
hta,
autoit,
powershell,
nodejs,
javascript,
Expand Down