user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Linux/Mirai.BE!xp
Backdoor:Linux/Mirai.BE!xp - Windows Defender threat signature analysis

Backdoor:Linux/Mirai.BE!xp - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.BE!xp
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:BE
Specific signature variant within the malware family
Suffix:!xp
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for Linux platform, family Mirai

Summary:

Backdoor:Linux/Mirai.BE!xp is a concrete detection for a Mirai botnet variant targeting Linux-based IoT devices. It gains backdoor access to infected systems, recruiting them into a botnet primarily for launching Distributed Denial of Service (DDoS) attacks and self-propagation.

Severity:
Critical
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_BE_2147819265_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.BE!xp"
        threat_id = "2147819265"
        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 = "High"
    strings:
        $x_1_1 = "/bin/busybox" ascii //weight: 1
        $x_1_2 = "DOS BOT KILLING" ascii //weight: 1
        $x_1_3 = "dropbear" ascii //weight: 1
        $x_1_4 = "var/tmp/sonia" ascii //weight: 1
        $x_1_5 = "Self Rep Fucking NeTiS" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (4 of ($x*))
}
Known malware which is associated with this threat:
Filename: bot.mpsl
bdb1d7583382ea951ebe241bfdd51524df5a96cc3eccddaa4af34ad2f0c3970b
07/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected Linux device from the network. Perform a factory reset or reimage the device, ensuring all firmware and software are updated and patched. Change all default or weak credentials to strong, unique passwords and implement network segmentation with egress filtering to prevent C2 communication and further spread.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 07/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊