Linux_Trojan_Metasploit_47f4b334

rule Linux_Trojan_Metasploit_47f4b334 {
    meta:
        author = "Elastic Security"
        id = "47f4b334-619b-4b9c-841d-b00c09dd98e5"
        fingerprint = "955d65f1097ec9183db8bd3da43090f579a27461ba345bb74f62426734731184"
        creation_date = "2024-05-07"
        last_modified = "2024-05-21"
        description = "Detects x86 msfvenom exec payloads"
        threat_name = "Linux.Trojan.Metasploit"
        reference_sample = "c3821f63a7ec8861a6168b4bb494bf8cbac436b3abf5eaffbc6907fd68ebedb8"
        severity = 100
        arch_context = "x86"
        scan_context = "file, memory"
        license = "Elastic License v2"
        os = "linux"
    strings:
        $payload1 = { 31 C9 F7 E1 B0 0B [0-1] 68 2F ?? ?? ?? 68 2F 62 69 6E 89 E3 CD 80 }
        $payload2a = { 31 DB F7 E3 B0 0B 52 }
        $payload2b = { 88 14 1E 52 68 2F 2F 73 68 68 2F 62 69 6E 89 E3 52 56 57 53 89 E1 CD 80 }
        $payload3a = { 6A 0B 58 99 52 }
        $payload3b = { 89 E7 68 2F 73 68 00 68 2F 62 69 6E 89 E3 52 E8 }
        $payload3c = { 57 53 89 E1 CD 80 }
    condition:
        $payload1 or (all of ($payload2*)) or (all of ($payload3*))
}