rule M_APT_CRYPTOSLAY_UNC1860_1 {
	meta:
		desc = "Detects the UNC1860 CRYPTOSLAY malware by its 
string decryption method"
		rs1 = "3F2FD2DFD27BF3CAFCBF0946E308832E11A1D9C1
D98FB04AC848E023E6720F53"
		rs2 = "5c1a42e9baaec115df337d2f4a9dcce8d73f29375921
827e367fcba8499cdfa2"
	strings:
		$a1 = { FE 09 00 00 6F ?? 00 00 0A FE 0E 00 00 FE 0C 00 00 20 02 00 00 00 5B 8D ?? 00 00 01 FE 0E 01 00 20 00 00 00 00 FE 0E 04 00 38 39 00 00 00 FE 0C 01 00 FE 0C 04 00 20 02 00 00 00 5B FE 09 00 00 FE 0C 04 00 20 02 00 00 00 6F ?? 00 00 0A 20 10 00 00 00 28 ?? 00 00 0A 9C FE 0C 04 00 20 02 00 00 00 58 FE 0E 04 00 FE 0C 04 00 FE 0C 00 00 3F BA FF FF FF 28 ?? 00 00 0A }
		$a2 = { FE 09 00 00 6F ?? 00 00 0A FE 0E 00 00 FE 0C 00 00 20 02 00 00 00 5B 8D ?? 00 00 01 FE 0E 01 00 20 00 00 00 00 FE 0E 06 00 38 39 00 00 00 FE 0C 01 00 FE 0C 06 00 20 02 00 00 00 5B FE 09 00 00 FE 0C 06 00 20 02 00 00 00 6F ?? 00 00 0A 20 10 00 00 00 28 ?? 00 00 0A 9C FE 0C 06 00 20 02 00 00 00 58 FE 0E 06 00 FE 0C 06 00 FE 0C 00 00 FE 04 FE 0E 07 00 FE 0C 07 00 3A B0 FF FF FF }
	condition:
		uint16(0) == 0x5A4D and any of them
}