Analysis
- max time kernel
69s - max time network
152s - platform
debian-9_mips - resource
debian9-mipsbe-20251231-en - resource tags
- submitted
02/01/2026, 07:00
General
- Target mips.uhavenobotsxd.elf
- Size 128KB
- Sample260102-hs1h7adn4y
- SHA256 10e88373c3fba576754ff519a7d294bbbe66334f3aaf49441e4c954dca8a3dda
Score
10/10
Malware Config
Signatures
- Mirai
Mirai is a prevalent Linux malware infecting exposed network devices.
- Mirai family
- Executes dropped EXE 13 IoCs
- Creates/modifies Cron job 1 TTPs 4 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
- Creates/modifies environment variables 1 TTPs 2 IoCs
Creating/modifying environment variables is a common persistence mechanism.
- Deletes log files 1 TTPs 2 IoCs
Deletes log files on the system.
- Enumerates running processes
Discovers information about currently running processes on the system
- Modifies init.d 2 TTPs 7 IoCs
Adds/modifies system service, likely for persistence.
- Modifies rc script 2 TTPs 2 IoCs
Adding/modifying system rc scripts is a common persistence mechanism.
- Write file to user bin folder 1 IoCs
- Modifies Bash startup script 2 TTPs 2 IoCs
- Changes its process name 9 IoCs
- Reads runtime system information 64 IoCs
Reads data from /proc virtual filesystem.
- System Network Configuration Discovery 1 TTPs 9 IoCs
Adversaries may gather information about the network configuration of a system.
- Writes file to shm directory 1 IoCs
Malware can drop malicious files in the shm directory which will run directly from RAM.
Processes
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/tmp/mips.uhavenobotsxd.elf/tmp/mips.uhavenobotsxd.elf1⤵
- Creates/modifies Cron job
- Creates/modifies environment variables
- Deletes log files
- Modifies init.d
- Modifies rc script
- Modifies Bash startup script
- Changes its process name
- Reads runtime system information
- System Network Configuration Discovery
- Writes file to shm directory
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/bin/shsh -c "rm -f /var/.update /var/tmp/.update /var/log/.update 2>/dev/null"2⤵
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/bin/rmrm -f /var/.update /var/tmp/.update /var/log/.update3⤵
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/bin/shsh -c "rm -f /mnt/.update /media/.update /home/.update /root/.update 2>/dev/null"2⤵
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/bin/rmrm -f /mnt/.update /media/.update /home/.update /root/.update3⤵
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/bin/shsh -c "rm -f /usr/bin/.update /bin/.update 2>/dev/null"2⤵
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/bin/rmrm -f /usr/bin/.update /bin/.update3⤵
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/bin/shsh -c "rm -f /etc/init.d/S99system /etc/init.d/S99network 2>/dev/null"2⤵
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/bin/rmrm -f /etc/init.d/S99system /etc/init.d/S99network3⤵
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/bin/shsh -c "rm -f /etc/init.d/S99backup0 /etc/init.d/S99backup1 /etc/init.d/S99backup2 2>/dev/null"2⤵
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/bin/rmrm -f /etc/init.d/S99backup0 /etc/init.d/S99backup1 /etc/init.d/S99backup23⤵
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/bin/shsh -c "rm -f /etc/rc*.d/S99system /etc/rc*.d/S99network 2>/dev/null"2⤵
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/bin/rmrm -f "/etc/rc*.d/S99system" "/etc/rc*.d/S99network"3⤵
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/bin/shsh -c "rm -f /etc/rc*.d/S99backup* 2>/dev/null"2⤵
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/bin/rmrm -f "/etc/rc*.d/S99backup*"3⤵
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/bin/shsh -c "rm -f /var/.monitor /var/tmp/.monitor /tmp/.monitor 2>/dev/null"2⤵
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/bin/rmrm -f /var/.monitor /var/tmp/.monitor /tmp/.monitor3⤵
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/bin/shsh -c "rm -f /mnt/.monitor /media/.monitor /home/.monitor /root/.monitor 2>/dev/null"2⤵
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/bin/rmrm -f /mnt/.monitor /media/.monitor /home/.monitor /root/.monitor3⤵
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/bin/shsh -c "killall -9 .update 2>/dev/null"2⤵
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/usr/bin/killallkillall -9 .update3⤵
- Reads runtime system information
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/bin/shsh -c "killall -9 .monitor 2>/dev/null"2⤵
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/usr/bin/killallkillall -9 .monitor3⤵
- Reads runtime system information
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/bin/shsh -c "cp -f /tmp/mips.uhavenobotsxd.elf /usr/bin/.update 2>/dev/null"2⤵
- System Network Configuration Discovery
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/bin/cpcp -f /tmp/mips.uhavenobotsxd.elf /usr/bin/.update3⤵
- Write file to user bin folder
- Reads runtime system information
- System Network Configuration Discovery
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/bin/shsh -c "cp -f /tmp/mips.uhavenobotsxd.elf /var/log/.update 2>/dev/null"2⤵
- System Network Configuration Discovery
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/bin/cpcp -f /tmp/mips.uhavenobotsxd.elf /var/log/.update3⤵
- System Network Configuration Discovery
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/bin/shsh -c "/etc/init.d/S99backup0 start > /dev/null 2>&1 &"2⤵
- Executes dropped EXE
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/bin/shsh -c "cp -f /tmp/mips.uhavenobotsxd.elf /var/.update 2>/dev/null"2⤵
- System Network Configuration Discovery
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/bin/cpcp -f /tmp/mips.uhavenobotsxd.elf /var/.update3⤵
- System Network Configuration Discovery
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/bin/shsh -c "/etc/init.d/S99backup1 start > /dev/null 2>&1 &"2⤵
- Executes dropped EXE
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/bin/shsh -c "cp -f /tmp/mips.uhavenobotsxd.elf /mnt/.update 2>/dev/null"2⤵
- System Network Configuration Discovery
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/bin/cpcp -f /tmp/mips.uhavenobotsxd.elf /mnt/.update3⤵
- Reads runtime system information
- System Network Configuration Discovery
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/bin/shsh -c "/etc/init.d/S99backup2 start > /dev/null 2>&1 &"2⤵
- Executes dropped EXE
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/bin/shsh -c "(crontab -l 2>/dev/null; echo '* * * * * /usr/bin/.update startup') | crontab - 2>/dev/null"2⤵
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/usr/bin/crontabcrontab -l3⤵
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
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/bin/shsh -c "kill -HUP 1 2>/dev/null"2⤵
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/bin/shsh -c "/etc/init.d/S99network start > /dev/null 2>&1 &"2⤵
- Executes dropped EXE
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/bin/shsh -c "/run/user/0/.monitor > /dev/null 2>&1 &"2⤵
- Executes dropped EXE
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/bin/shsh -c "/usr/bin/.update startup &"2⤵
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/bin/shsh -c "/usr/bin/.update startup &"2⤵
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/etc/init.d/S99backup0/etc/init.d/S99backup0 start1⤵
- Executes dropped EXE
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/var/log/.update/var/log/.update startup2⤵
- Changes its process name
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/bin/sleepsleep 602⤵
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/bin/sleepsleep 602⤵
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/var/log/.update/var/log/.update startup2⤵
- Changes its process name
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/etc/init.d/S99backup1/etc/init.d/S99backup1 start1⤵
- Executes dropped EXE
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/var/.update/var/.update startup2⤵
- Changes its process name
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/bin/sleepsleep 602⤵
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/bin/sleepsleep 602⤵
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/var/.update/var/.update startup2⤵
- Changes its process name
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/etc/init.d/S99backup2/etc/init.d/S99backup2 start1⤵
- Executes dropped EXE
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/mnt/.update/mnt/.update startup2⤵
- Changes its process name
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/bin/sleepsleep 602⤵
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/bin/sleepsleep 602⤵
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/mnt/.update/mnt/.update startup2⤵
- Changes its process name
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/etc/init.d/S99network/etc/init.d/S99network start1⤵
- Executes dropped EXE
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/usr/bin/.update/usr/bin/.update startup2⤵
- Changes its process name
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/bin/sleepsleep 602⤵
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/bin/sleepsleep 602⤵
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/usr/bin/.update/usr/bin/.update startup2⤵
- Changes its process name
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/run/user/0/.monitor/run/user/0/.monitor1⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Boot or Logon Initialization Scripts
2RC Scripts
2Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
3Boot or Logon Initialization Scripts
2RC Scripts
2Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1Replay Monitor
Loading Replay Monitor...
Downloads
S99backup0
S99backup1
S99backup2
S99network
S99system
inittab
rc.local
.update
root
tmp.p5zAMg