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Snippets for more files headers #62

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6122a6b
feat: More Header Snippets
May 11, 2022
b072123
fix: Escape $ Sign
May 11, 2022
61d1eef
fix: Added additional Macho Header,
May 13, 2022
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43 changes: 42 additions & 1 deletion yara/snippets/yara.json
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Original file line number Diff line number Diff line change
Expand Up @@ -44,9 +44,50 @@
},
"Mach-O Header": {
"prefix": "header_macho",
"body": "uint32(0) == 0xFEEDFACF ",
"body": "(uint16(0) == 0xfeca or uint16(0) == 0xfacf) ",
"description": "Generate a condition to check for a Mach-O file header"
},
"LNK Header": {
"prefix": "header_LNK",
"body": "uint16(0) == 0x004c and uint32(4) == 0x00021401 ",
"description": "Generate a condition to check for a LNK file header"
},
"Doc Header": {
"prefix": "header_Doc",
"body": [
"\t\tuint32be(0) == 0x09081000 or // XLS",
"\t\t// uint32be(0) == 0x25504446 or // PDF",
"\t\t// DOCX, XLSX, PPTX - Microsoft Office Open XML Format (OOXML)",
"\t\t( uint32be(0) == 0x504b0304 and \\$s1 in (0..100) ) or",
"\t\tuint32be(0) == 0x7b5c7274 or // RTF",
"\t\t// DOC, DOT, PPS, PPT, XLA, XLS, WIZ",
"\t\t( uint32be(0) == 0xd0cf11e0 and not \\$r1 ) or",
"\t\tuint32be(512) == 0xeca5c100 or // DOC",
"\t\tuint32be(512) == 0xa0461df0 or // PPT",
"\t\tuint32be(512) == 0x0f00e803 // PPT"
],
"description": "Generate a condition to check for a Doc file header"
},
"PDF Header": {
"prefix": "header_PDF",
"body": "uint32(0) == 0x46445025 ",
"description": "Generate a condition to check for a PDF file header"
},
"RTF Header": {
"prefix": "header_RTF",
"body": "uint32be(0) == 0x7B5C7274 ",
"description": "Generate a condition to check for a RTF file header"
},
"gzip Header": {
"prefix": "header_gzip",
"body": "uint16(0) == 0x8B1F ",
"description": "Generate a condition to check for a gzip file header"
},
"pkzip Header": {
"prefix": "header_pkzip",
"body": "uint16(0) == 0x4b50 ",
"description": "Generate a condition to check for a pkzip file header"
},
"string": {
"prefix": "$s",
"body": [
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