Linux.Siggen.2295
Added to the Dr.Web virus database:
2019-11-01
Virus description added:
2019-10-31
Technical Information
Malicious functions:
Substitutes application name for:
Modifies firewall settings:
- iptables -I INPUT -p tcp --destination-port 22 -j DROP
- iptables -I INPUT -p tcp --destination-port 23 -j DROP
- iptables -I INPUT -p tcp --destination-port 2323 -j DROP
- iptables -I OUTPUT -p tcp --source-port 22 -j DROP
- iptables -I OUTPUT -p tcp --source-port 23 -j DROP
- iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
- iptables -I INPUT -p tcp --destination-port 44196 -j ACCEPT
- iptables -I INPUT -p udp --destination-port 8080 -j ACCEPT
- iptables -I OUTPUT -p tcp --source-port 44196 -j ACCEPT
- iptables -I OUTPUT -p udp --source-port 8080 -j ACCEPT
- iptables -I PREROUTING -t nat -p tcp --destination-port 44196 -j ACCEPT
- iptables -I PREROUTING -t nat -p udp --destination-port 8080 -j ACCEPT
Launches processes:
- sh -c echo 3 > /proc/sys/vm/drop_caches
- sh -c iptables -I INPUT -p tcp --destination-port 22 -j DROP
- sh -c iptables -I INPUT -p tcp --destination-port 23 -j DROP
- sh -c iptables -I INPUT -p tcp --destination-port 2323 -j DROP
- sh -c iptables -I OUTPUT -p tcp --source-port 22 -j DROP
- sh -c iptables -I OUTPUT -p tcp --source-port 23 -j DROP
- sh -c iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
- sh -c iptables -I INPUT -p tcp --destination-port 44196 -j ACCEPT
- sh -c iptables -I INPUT -p udp --destination-port 8080 -j ACCEPT
- sh -c iptables -I OUTPUT -p tcp --source-port 44196 -j ACCEPT
- sh -c iptables -I OUTPUT -p udp --source-port 8080 -j ACCEPT
- sh -c iptables -I PREROUTING -t nat -p tcp --destination-port 44196 -j ACCEPT
- sh -c iptables -I PREROUTING -t nat -p udp --destination-port 8080 -j ACCEPT
Performs operations with the file system:
Creates or modifies files:
- /proc/self/oom_score_adj
- /proc/684/oom_score_adj
- /proc/sys/vm/drop_caches
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:14737
- 0.0.0.0:44196
- 0.0.0.0:8080
Establishes connection:
Curing recommendations
Linux
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