A swiss army knife for pattern matching.
Often used for writing Malware Signatures for Unpacked malware.
Used primarily as Hunting Rules
Ends with .yar File Extension.
Usage
yara myrule.yar myfile
yara myrule.yar mydirectory/
Boilerplate
rule silent_banker : banker
{
meta:
description = "This is just an example"
threat_level = 3
in_the_wild = true
strings:
$a = {6A 40 68 00 30 00 00 6A 14 8D 91}
$b = {8D 4D B0 2B C1 83 C0 27 99 6A 4E 59 F7 F9}
$c = "UVODFRYSIHLNWPEJXQZAKCBGMT"
condition:
$a or $b or $c
}