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Linux.Siggen.3512

Added to the Dr.Web virus database: 2021-01-10

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
Malicious functions:
Launches processes:
  • sh -c touch -r /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp/Zimbra.jsp /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp/Alert.jsp
  • touch -r /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp/Zimbra.jsp /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp/Alert.jsp
  • sh -c touch -r /opt/zimbra/jetty/webapps/zimbra/public/jsp/Crypt.jsp /opt/zimbra/jetty/webapps/zimbra/public/jsp/CryptCore.jsp
  • touch -r /opt/zimbra/jetty/webapps/zimbra/public/jsp/Crypt.jsp /opt/zimbra/jetty/webapps/zimbra/public/jsp/CryptCore.jsp
  • sh -c (crontab -l|grep -v 'zmstorewatch'|grep -v '/tmp/'|grep -v 'wget'|grep -v 'curl')|crontab -
  • crontab -
  • crontab -l
  • grep -v zmstorewatch
  • grep -v wget
  • grep -v /tmp/
  • grep -v curl
  • sh -c (crontab -l|grep -v zmlogswatch|grep -v 'DO NOT EDIT ANYTHING';printf \"*/60 * * * * /opt/zimbra/lib/zmlogswatc
  • grep -v zmlogswatch
  • grep -v DO NOT EDIT ANYTHING
Performs operations with the file system:
Modifies file access rights:
  • /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp
  • /var/spool/cron/crontabs/tmp.3eoIdF
  • /var/spool/cron/crontabs/tmp.tQmxdF
Creates folders:
  • /opt/zimbra
  • /opt/zimbra/jetty
  • /opt/zimbra/jetty/webapps
  • /opt/zimbra/jetty/webapps/zimbraAdmin
  • /opt/zimbra/jetty/webapps/zimbraAdmin/public
  • /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp
  • /opt/zimbra/jetty/webapps/zimbra
  • /opt/zimbra/jetty/webapps/zimbra/public
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp
Creates or modifies files:
  • /opt/zimbra/jetty/webapps/zimbraAdmin/public/jsp/Alert.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/CryptCore.jsp
  • /var/spool/cron/crontabs/tmp.3eoIdF
  • /var/spool/cron/crontabs/tmp.tQmxdF
Deletes files:
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/infoc.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/BootCore.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/ShareCore.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/ZimbraCore.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/jsp/Online.jsp
  • /opt/zimbra/jetty/webapps/zimbra/public/404.jsp
  • /opt/zimbra/conf/zmsstorewatch.cnf
  • /opt/zimbra/conf/zmsstore.cnf
  • /opt/zimbra/lib/zmmailboxdwatch
  • /opt/zimbra/lib/zmstorewatch

Curing recommendations

Linux

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