Concrete signature match: Backdoor - Provides unauthorized remote access for Linux platform, family Mirai
No specific strings found for this threat
rule Backdoor_Linux_Mirai_AU_2147818398_0
{
meta:
author = "threatcheck.sh"
detection_name = "Backdoor:Linux/Mirai.AU!xp"
threat_id = "2147818398"
type = "Backdoor"
platform = "Linux: Linux platform"
family = "Mirai"
severity = "Critical"
info = "xp: an internal category used to refer to some threats"
signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
threshold = "4"
strings_accuracy = "Low"
strings:
$x_2_1 = {2f 62 69 6e 2f 62 75 73 79 62 6f 78 20 77 67 65 74 20 68 74 74 70 3a 2f 2f [0-32] 2f} //weight: 2, accuracy: Low
$x_1_2 = "TVWSVPVT" ascii //weight: 1
$x_1_3 = "POST /cdn-cgi/" ascii //weight: 1
$x_1_4 = "/dev/null" ascii //weight: 1
condition:
(filesize < 20MB) and
(
((1 of ($x_2_*) and 2 of ($x_1_*))) or
(all of ($x*))
)
}2f4368761f0925a45475730eeb9ef1b84139b65f7a06643fc355c89d243f52b0bfa26a7f18dc856198da87d37ab4d522f67fddeececa4b557992dfdfe2ddcb71ac5d67a5cc210d5858c03c4f26cbd47defabfd74583a67cd2598b06ed42165cd9b0f79b1ec3141f6eb5db1c993a90d583387ca78f84844ca05600b1f16c9b17f1daa214af10e1cc764461ff745d3aabe9b0451cd93b814dd2654581484d2fc78