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wxs@wxs-mbp yara % cat rules/test.yara
rule a {
    // This program cannot VGhpcyBwcm9ncmFtIGNhbm5vdA==
    // AThis program cannot QVRoaXMgcHJvZ3JhbSBjYW5ub3Q=
    // AAThis program cannot QUFUaGlzIHByb2dyYW0gY2Fubm90
    $a = "This program cannot" base64 ascii

    // Custom alphabets are supported, but I have it commented out for now. ;)
    //$b = "This program cannot" base64("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/")
    #a == 8
wxs@wxs-mbp yara % ./yara -s rules/test.yara rules/test.yara
a rules/test.yara
0x1b:$a: This program cannot
0x2f:$a: VGhpcyBwcm9ncmFtIGNhbm5vd
0x54:$a: This program cannot
0x6a:$a: RoaXMgcHJvZ3JhbSBjYW5ub3
0x8e:$a: This program cannot
0xa6:$a: aGlzIHByb2dyYW0gY2Fubm9
0xc9:$a: This program cannot
0x147:$a: This program cannot
wxs@wxs-mbp yara %
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itsreallynick commented Dec 4, 2019


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