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Add is_exe #1990

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8 changes: 8 additions & 0 deletions docs/modules/pe.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1474,6 +1474,14 @@ Reference

*Example: pe.is_pe*

.. c:function:: is_exe()

.. versionadded:: 4.3.3

Function returning true if the PE is a EXE.

*Example: pe.is_exe()*

.. c:function:: is_dll()

.. versionadded:: 3.5.0
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13 changes: 13 additions & 0 deletions libyara/modules/pe/pe.c
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Expand Up @@ -3299,6 +3299,18 @@ define_function(language)
return_integer(0);
}

define_function(is_exe)
{
int64_t characteristics;
YR_OBJECT* module = yr_module();

if (yr_is_undefined(module, "characteristics"))
return_integer(YR_UNDEFINED);

characteristics = yr_get_integer(module, "characteristics");
return_integer(characteristics & IMAGE_FILE_EXECUTABLE_IMAGE);
}

define_function(is_dll)
{
int64_t characteristics;
Expand Down Expand Up @@ -3791,6 +3803,7 @@ begin_declarations
declare_function("delayed_import_rva", "si", "i", delayed_import_rva_ordinal);
declare_function("locale", "i", "i", locale);
declare_function("language", "i", "i", language);
declare_function("is_exe", "", "i", is_exe);
declare_function("is_dll", "", "i", is_dll);
declare_function("is_32bit", "", "i", is_32bit);
declare_function("is_64bit", "", "i", is_64bit);
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1 change: 1 addition & 0 deletions tests/oss-fuzz/rules_fuzzer.dict
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Expand Up @@ -98,6 +98,7 @@
"pe.language"
"pe.imphash"
"pe.section_index"
"pe.is_exe()"
"pe.is_dll()"
"pe.is_32bit()"
"pe.is_64bit()"
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