Sneed-Reactivity/yara-Neo23x0/crime_ransom_conti.yar

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rule MAL_RANSOM_ContiCrypter {
meta:
author = "James Quinn, Binary Defense"
description = "Signature for a crypter associated with Conti"
date = "2021-03-17"
tlp = "White"
id = "f2a00655-41a2-5614-9c29-3629c93c0e95"
strings:
$handoff1 = {4C 8D 05 ?? ?? ?? ?? 48 C7 44 24 28 00 00 00 00 C7 44 24 20 00 00 00 00 e8}
$handoff2 = {C7 ?? 24 ?? 00 00 00 00 89 44 24 ?? C7 ?? 24 ?? ?? ?? ?? ?? C7 ?? 24 ?? 00 00 00 00 }
$garbageLoad1 = {53 48 83 EC 20 89 CB 48 8D 0D ?? ?? ?? ?? FF 15 ?? ?? ?? ?? 01 D8 48 83 C4 20 5B C3}
$garbageLoad2 = {55 89 E5 83 EC 18 C7 ?? 24 ?? ?? ?? ?? FF 15 ?? ?? ?? ?? 03 45 08 52 C9 C3}
condition:
1 of ($handoff*) and 1 of ($garbageLoad*)
}