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Linux.Siggen.3851

Added to the Dr.Web virus database: 2021-04-25

Virus description added:

Technical Information

Malicious functions:
Removes itself
Launches itself as a daemon
Modifies firewall settings:
  • iptables -D INPUT -p tcp --dport 9526 -j ACCEPT
  • iptables -I INPUT -p tcp --dport 9526 -j ACCEPT
  • iptables -I INPUT -p udp --dport 9526 -j ACCEPT
Launches processes:
  • sh -c firewall delport eth0 telnetd TCP 9526
  • sh -c iptables -D INPUT -p tcp --dport 9526 -j ACCEPT && iptables -D INPUT -p udp --dport 9526 -j ACCEPT && ip6tables -D INPUT -p tcp --dport 9526 -j ACCEPT && ip6tables -D INPUT -p udp --dport 9526 -j ACCEPT
  • sh -c firewall addport eth0 telnetd TCP 9526
  • sh -c iptables -I INPUT -p tcp --dport 9526 -j ACCEPT && iptables -I INPUT -p udp --dport 9526 -j ACCEPT && ip6tables -I INPUT -p tcp --dport 9526 -j ACCEPT && ip6tables -I INPUT -p udp --dport 9526 -j ACCEPT
  • ip6tables -I INPUT -p tcp --dport 9526 -j ACCEPT
  • /sbin/modprobe ip6_tables
  • ip6tables -I INPUT -p udp --dport 9526 -j ACCEPT
Network activity:
Awaits incoming connections on ports:
  • 0.0.0.0:9526
Establishes connection:
  • [:##]:9526
  • 127.0.0.1:9526
  • 91.###.242.219:9122

Curing recommendations


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