Linux.Siggen.4024
Added to the Dr.Web virus database:
2021-07-02
Virus description added:
2021-07-02
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:
- hwacegqvbnba1mogqv6c2ql062o2
Launches processes:
- sh -c (crontab -l | grep -v \"/<SAMPLE_FULL_PATH>\" | grep -v \"/sh5\" | grep -v \"/init5\" | grep -v \"/bash5\" | grep -v \"no cron\" > /var/run/.hh21804289383) > /dev/null 2>&1
- crontab -l
- grep -v /sh5
- grep -v /init5
- grep -v /<SAMPLE_FULL_PATH>
- grep -v /bash5
- grep -v no cron
- sh -c crontab /var/run/.hh21804289383
- crontab /var/run/.hh21804289383
- sh -c /bin/uname -n
- /bin/uname -n
Performs operations with the file system:
Modifies file access rights:
- /root/bash5
- /var/tmp/bash5
- /run/sh5
- /run/lock/init5
- /dev/shm/bash5
- /tmp/bash5
- /var/spool/cron/crontabs/tmp.o3cslN
Creates or modifies files:
- /var/run/.hh21804289383
- /root/bash5
- /run/.hh21804289383
- /var/tmp/bash5
- /var/run/sh5
- /run/sh5
- /var/lock/init5
- /run/lock/init5
- /dev/shm/bash5
- /tmp/bash5
- /var/spool/cron/crontabs/tmp.o3cslN
Deletes files:
Network activity:
Awaits incoming connections on ports:
Establishes connection:
- 5.###.84.159:8080
- <LOCAL_DNS_SERVER>
DNS ASK:
Curing recommendations
Linux
Free trial
One month (no registration) or three months (registration and renewal discount)
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