Linux.Siggen.6790
Added to the Dr.Web virus database:
2024-03-18
Virus description added:
2024-03-18
Technical Information
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
Launches processes:
- echo \x22Signalbot:ufobotz1337\x22 | chpasswd
- chpasswd
- history -c
- ftp -n
- useradd -m Signalbot
Performs operations with the file system:
Modifies file access rights:
- /home/Signalbot
- /home/Signalbot/.profile
- /home/Signalbot/.bash_logout
- /home/Signalbot/.bashrc
- /etc/passwd-
- /etc/passwd+
- /etc/shadow-
- /etc/shadow+
- /etc/group-
- /etc/group+
- /etc/gshadow-
- /etc/gshadow+
- /etc/subuid-
- /etc/subuid+
- /etc/subgid-
- /etc/subgid+
- /etc/nshadow
Modifies file owner:
- /home/Signalbot
- /home/Signalbot/.profile
- /home/Signalbot/.bash_logout
- /home/Signalbot/.bashrc
- /etc/passwd-
- /etc/passwd+
- /etc/shadow-
- /etc/shadow+
- /etc/group-
- /etc/group+
- /etc/gshadow-
- /etc/gshadow+
- /etc/subuid-
- /etc/subuid+
- /etc/subgid-
- /etc/subgid+
- /etc/nshadow
Creates folders:
Creates symlinks:
- /etc/passwd.lock
- /etc/group.lock
- /etc/gshadow.lock
- /etc/subuid.lock
- /etc/subgid.lock
- /etc/shadow.lock
Creates or modifies files:
- /self
- /proc/716/cmdline
- /etc/.pwd.lock
- /etc/passwd.718
- /etc/group.718
- /etc/gshadow.718
- /etc/subuid.718
- /etc/subgid.718
- /etc/shadow.718
- /var/log/faillog
- /var/log/lastlog
- /home/Signalbot/.profile
- /home/Signalbot/.bash_logout
- /home/Signalbot/.bashrc
- /etc/passwd-
- /etc/passwd+
- /etc/shadow-
- /etc/shadow+
- /etc/group-
- /etc/group+
- /etc/gshadow-
- /etc/gshadow+
- /etc/subuid-
- /etc/subuid+
- /etc/subgid-
- /etc/subgid+
- /etc/nshadow
- /etc/sudoers
- /ip_addresses.txt
Deletes files:
- /etc/passwd.718
- /etc/group.718
- /etc/gshadow.718
- /etc/subuid.718
- /etc/subgid.718
- /etc/shadow.718
- /etc/shadow.lock
- /etc/passwd.lock
- /etc/group.lock
- /etc/gshadow.lock
- /etc/subuid.lock
- /etc/subgid.lock
Changes time of creation/access/modification of files:
- /home/Signalbot/.profile
- /home/Signalbot/.bash_logout
- /home/Signalbot/.bashrc
- /etc/passwd-
- /etc/shadow-
- /etc/group-
- /etc/gshadow-
- /etc/subuid-
- /etc/subgid-
Network activity:
Awaits incoming connections on ports:
Establishes connection:
Curing recommendations
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