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The detection of BAT to PE-EXE script-compilers. #761

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May 5, 2020
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The detection of BAT to PE-EXE script-compilers. #761

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893cc06
Add the detection of BAT2EXE script compiler from F2KO.
tamaroth Apr 30, 2020
05bfd2b
Add the detection of Advanced BAT to EXE Converter from BDargo Software.
tamaroth Apr 30, 2020
711171b
Add the detection of ExeScript.
tamaroth May 4, 2020
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11 changes: 11 additions & 0 deletions support/yara_patterns/tools/pe/x64/compilers.yara
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Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,17 @@ rule autohotkey_uv_01 {
)
}

rule f2ko_bat2exe_uv_01 {
meta:
tool = "C"
name = "F2KO Bat2Exe"
pattern = "4883EC??49C7C0????????4831D248B9????????????????E8????????4831C9E8????????4889??????????4D31C048C7C2001000004831C9E8????????4889"
strings:
$1 = { 48 83 EC ?? 49 C7 C0 ?? ?? ?? ?? 48 31 D2 48 B9 ?? ?? ?? ?? ?? ?? ?? ?? E8 ?? ?? ?? ?? 48 31 C9 E8 ?? ?? ?? ?? 48 89 ?? ?? ?? ?? ?? 4D 31 C0 48 C7 C2 00 10 00 00 48 31 C9 E8 ?? ?? ?? ?? 48 89 }
condition:
$1 at pe.entry_point
}

rule msvc_general
{
meta:
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37 changes: 37 additions & 0 deletions support/yara_patterns/tools/pe/x86/compilers.yara
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Original file line number Diff line number Diff line change
Expand Up @@ -3383,6 +3383,43 @@ rule ocbat2exe {
for any of them : ( $ at pe.entry_point )
}

rule f2ko_bat2exe_uv_01 {
meta:
tool = "C"
name = "F2KO Bat2Exe"
pattern = "68????0000680000000068????????E8????????83C40C6800000000E8????????A3????????680000000068001000006800000000E8????????A3"
strings:
$1 = { 68 ?? ?? 00 00 68 00 00 00 00 68 ?? ?? ?? ?? E8 ?? ?? ?? ?? 83 C4 0C 68 00 00 00 00 E8 ?? ?? ?? ?? A3 ?? ?? ?? ?? 68 00 00 00 00 68 00 10 00 00 68 00 00 00 00 E8 ?? ?? ?? ?? A3 }
condition:
$1 at pe.entry_point
}

rule adv_bat_to_exe_uv_01 {
meta:
tool = "C"
name = "Advanced BAT to EXE Converter"
pattern = "B94FC3000033C08DBD????????F3AB66ABAAA0????????8885????????B96918000033C08DBD????????F3AB66ABAA8A0D????????888D????????B94000000033C08DBD????????F3AB66ABAA8A15????????8895????????B95900000033C08D"
strings:
$1 = { B9 4F C3 00 00 33 C0 8D BD ?? ?? ?? ?? F3 AB 66 AB AA A0 ?? ?? ?? ?? 88 85 ?? ?? ?? ?? B9 69 18 00 00 33 C0 8D BD ?? ?? ?? ?? F3 AB 66 AB AA 8A 0D ?? ?? ?? ?? 88 8D ?? ?? ?? ?? B9 40 00 00 00 33 C0 8D BD ?? ?? ?? ?? F3 AB 66 AB AA 8A 15 ?? ?? ?? ?? 88 95 ?? ?? ?? ?? B9 59 00 00 00 33 C0 8D }
condition:
$1
}

rule exescript_uv_01 {
meta:
tool = "C"
name = "ExeScript"
pattern = "558BEC81EC????????566A00FF15????????8985????????C785????????00000000C745????????00FF15????????A3"
strings:
$1 = { 55 8B EC 81 EC ?? ?? ?? ?? 56 6A 00 FF 15 ?? ?? ?? ?? 89 85 ?? ?? ?? ?? C7 85 ?? ?? ?? ?? 00 00 00 00 C7 45 ?? ?? ?? ?? 00 FF 15 ?? ?? ?? ?? A3 }
$2 = "<!-- ----- ExeScript Options Begin -----"
condition:
$1 at pe.entry_point and
@2 > pe.sections[pe.section_index(".rdata")].raw_data_offset and
@2 < pe.sections[pe.section_index(".rdata")].raw_data_offset +
pe.sections[pe.section_index(".rdata")].raw_data_size
}

rule plugintoexe_100 {
meta:
tool = "P"
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