Linux.Packed.730
Added to the Dr.Web virus database:
2020-02-25
Virus description added:
2020-02-25
Technical Information
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
Modifies firewall settings:
- iptables -I INPUT -s 192.99.142.0/22 -j DROP
Launches processes:
- sh -c 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/.* ; >/dev/null 2>&1
- atq
- awk {print $1}
- chattr -R -i /tmp/*
- sh -c
- sh -c /tmp/htwhmv
- /tmp/htwhmv
Kills system processes:
Kills the following processes:
- /bin/sh
- run.sh
- bash
- acpid
- cron
- (sd-pam)
- <SAMPLE>
- systemd-udevd
- /sbin/iptables
- systemd-journal
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
- /etc/ld.so.cache
- /usr/sbin/atd
- /bin/nc.traditional
- /etc/crontab
- /usr/bin/ssh
- /sbin/xtables-multi
- /etc/hosts
- /etc/hosts.deny
- /usr/sbin/sshd
- /usr/sbin/cron
- /var/spool/cron
- /tmp/htwhmv
Deletes folders:
- /var/spool/cron/atjobs
- /var/spool/cron/atspool
- /var/spool/cron/crontabs
- /var/spool/cron/
Creates or modifies files:
Deletes files:
- /usr/bin/perl
- /etc/ld.so.cache
- /usr/sbin/atd
- /bin/nc
- /bin/netcat
- /etc/crontab
- /usr/bin/slogin
- /usr/bin/iptables-xml
- /usr/bin/crontab
- /etc/hosts
- /etc/hosts.deny
- /usr/sbin/sshd
- /usr/sbin/cron
- /var/spool/cron/atjobs/.SEQ
Curing recommendations
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