TROJ_COINMINE.SMXPU

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan drops the following component file(s):

• %Windows%\Fonts\history.txt
• %Windows%\Fonts\id.txt
• %Windows%\Fonts\sppsvc.exe
• %Windows%\Fonts\sserhy.ttf
• %Windows%\Fonts\sserid.fon

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It drops the following copies of itself into the affected system:

• %Windows%\Fonts\wuauser.exe

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Dropping Routine

This Trojan drops the following files:

• %Windows%\Fonts\LMS.exe ← Minerd Bitcoin miner

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It executes the dropped file. As a result, malicious routines of the dropped file are exhibited on the affected system.

Other Details

This Trojan does the following:

• It executes the following command lines:
  • cmd.exe /c del /f /s /q C:\SysData\acnom.exe
  • cmd.exe /c del /f /s /q C:\SysData\control.exe
  • cmd.exe /c del /f /s /q C:\SysData\install.exe
  • cmd.exe /c del /f /s /q C:\SysData\kill.exe
  • cmd.exe /c del /f /s /q c:\windows\dell\run.bat
  • cmd.exe /c del /f /s /q c:\windows\dell\run64.bat
  • cmd.exe /c del /f /s /q c:\windows\dell\svchost.exe
  • cmd.exe /c del /f /s /q c:\windows\dell\update64.exe
  • cmd.exe /c net stop Windows32_Update
  • cmd.exe /c net user delete IUSR_ADMIN
  • cmd.exe /c netsh ipsec static add filter filterlist=allow dstaddr=me srcaddr=45.32.0.0 srcmask=255.255.0.0 description=all445 protocol=tcp
  • cmd.exe /c netsh ipsec static add filter filterlist=allow dstaddr=me srcaddr=45.76.0.0 srcmask=255.255.0.0 description=all445 protocol=tcp
  • cmd.exe /c netsh ipsec static add filter filterlist=block any srcmask=32 srcport=0 dstaddr=me dstport=445 protocol=tcp description=445
  • cmd.exe /c netsh ipsec static add filteraction name=allow action=permit
  • cmd.exe /c netsh ipsec static add filteraction name=block action=block
  • cmd.exe /c netsh ipsec static add filterlist name=allow
  • cmd.exe /c netsh ipsec static add filterlist name=block
  • cmd.exe /c netsh ipsec static add policy name=netbc
  • cmd.exe /c netsh ipsec static add rule name=allow policy=netbc filterlist=allow filteraction=allow
  • cmd.exe /c netsh ipsec static add rule name=block policy=netbc filterlist=block filteraction=block
  • cmd.exe /c netsh ipsec static set policy name=netbc assign=y
  • cmd.exe /c sc config Windows32_Update start= disabled
  • cmd.exe /c sc delete WHDMIDE
  • cmd.exe /c sc stop WHDMIDE
  • cmd.exe /c taskkill /f /im hdmanager.exe
  • cmd.exe /c taskkill /f /im mmc.exe
  • cmd.exe /c taskkill /f /im update64.exe