Common Information
Type Value
Value
rule M_Hunting_VEILEDSIGNAL_6 {
	meta:
		author = "Mandiant"
		disclaimer = "This rule is meant for hunting and is not tested to run in a production environment"
		md5 = "00a43d64f9b5187a1e1f922b99b09b77"
	strings:
		$ss1 = "C:\\Programdata\\" wide
		$ss2 = "devobj.dll" wide fullword
		$ss3 = "msvcr100.dll" wide fullword
		$ss4 = "TpmVscMgrSvr.exe" wide fullword
		$ss5 = "\\Microsoft\\Windows\\TPM" wide fullword
		$ss6 = "CreateFileW" ascii fullword
	condition:
		(uint16(0) == 0x5A4D) and (uint32(uint32(0x3C)) == 0x00004550) and (uint16(uint32(0x3C) + 0x18) == 0x010B) and all of them
}
Category
Type Yara Rule
Misp Type
Description
Details Published Attributes CTI Title
Details Website 2023-04-20 72 3CX Software Supply Chain Compromise Initiated by a Prior Software Supply Chain Compromise; Suspected North Korean Actor Responsible | Mandiant