PE_XIAOBAMINER.SM
W32.XiaobaMiner (Norton); Trojan:Win32/Qhost (Microsoft); W32/Agent.OJQ!tr.spy (Fortinet)
Windows
Threat Type: File infector
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware, Via physical/removable drives
This coinminer has file infecting capabilities.
This File infector arrives via removable drives. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It prepends its codes to target files.
It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.
TECHNICAL DETAILS
3,152,856 bytes
EXE
Yes
06 Apr 2018
Drops files, Connects to URLs/IPs, Deletes files, Modifies HOSTS file
Arrival Details
This File infector arrives via removable drives.
It 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 File infector drops the following copies of itself into the affected system:
- %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Autostart Technique
This File infector adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
Run = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
ZhuDongFangYu = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
Other System Modifications
This File infector adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
Disableregistrytools = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\Hidden\
SHOWALL
CheckedValue = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoFolderOptions = 1
It deletes the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\SafeBoot\Minimal
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\SafeBoot\Network
File Infection
This File infector infects the following file types:
- .exe
- .com
- .scr
- .pif
It prepends its codes to target files.
Propagation
This File infector drops the following copy of itself in all physical and removable drives:
- {Drive Letter}:\RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.
The said .INF file contains the following strings:
[autorun]
open=RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
shellexecute=RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
shell\Auto\command=RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
shell\open=RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
shell\open\Command=RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
HOSTS File Modification
This File infector overwrites the system's HOSTS files to prevent users from accessing the following websites:
- {BLOCKED}.{BLOCKED}.51.17
- {BLOCKED}0.{BLOCKED}o.com
- {BLOCKED}.{BLOCKED}.236.92
- {BLOCKED}.{BLOCKED}.176.251
- {BLOCKED}s.{BLOCKED}p.com
- {BLOCKED}l.{BLOCKED}in.com
- {BLOCKED}in.com
- {BLOCKED}sky.com.cn
- {BLOCKED}o.com
- {BLOCKED}g.com.cn
- {BLOCKED}u.{BLOCKED}a.net
- {BLOCKED}l.{BLOCKED}a.com
- {BLOCKED}n.{BLOCKED}ft.com
- {BLOCKED}otal.com
- www.{BLOCKED}0.cn
- www.{BLOCKED}e.cn
- www.{BLOCKED}e.com
- www.{BLOCKED}v.com
- www.{BLOCKED}2.cn
- www.{BLOCKED}b.com
- www.{BLOCKED}a.net
- www.{BLOCKED}t.com.cn
- www.{BLOCKED}in.com
- www.{BLOCKED}sky.com
- www.{BLOCKED}sky.com.cn
- www.{BLOCKED}o.org
- www.{BLOCKED}2.com
- www.{BLOCKED}lub.com
- www.{BLOCKED}o.cn
- www.{BLOCKED}o.com
- www.{BLOCKED}g.com.cn
- www.{BLOCKED}otal.com
Other Details
This File infector does the following:
- It deletes the following file types:
- .gho
- .iso
- It modifies the following file types by appending a malicious script capable of coin mining:
- .html
- .htm
- Its malicious script may contain the following:
SOLUTION
9.850
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as PE_XIAOBAMINER.SM
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- EnableLUA = 0
- EnableLUA = 0
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
- Disableregistrytools = 1
- Disableregistrytools = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL
- CheckedValue = 0
- CheckedValue = 0
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
- NoFolderOptions = 1
- NoFolderOptions = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer
- Run = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
- Run = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- ZhuDongFangYu = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
- ZhuDongFangYu = %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
Step 5
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot\Network
Step 6
Remove these strings added by the malware/grayware/spyware in the HOSTS file
- 127.0.0.0 360.qihoo.com
- 127.0.0.1 qihoo.com
- 127.0.0.1 www.qihoo.com
- 127.0.0.1 www.qihoo.cn
- 127.0.0.1 124.40.51.17
- 127.0.0.1 58.17.236.92
- 127.0.0.1 www.kaspersky.com
- 127.0.0.1 60.210.176.251
- 127.0.0.1 www.cnnod32.cn
- 127.0.0.1 www.lanniao.org
- 127.0.0.1 www.nod32club.com
- 127.0.0.1 www.dswlab.com
- 127.0.0.1 bbs.sucop.com
- 127.0.0.1 www.virustotal.com
- 127.0.0.1 tool.ikaka.com
- 127.0.0.1 www.jiangmin.com
- 127.0.0.1 www.duba.net
- 127.0.0.1 www.eset.com.cn
- 127.0.0.1 www.nod32.com
- 127.0.0.1 shadu.duba.net
- 127.0.0.1 union.kingsoft.com
- 127.0.0.1 www.kaspersky.com.cn
- 127.0.0.1 kaspersky.com.cn
- 127.0.0.1 virustotal.com
- 127.0.0.1 www.360.cn
- 127.0.0.1 www.360safe.cn
- 127.0.0.1 www.360safe.com
- 127.0.0.1 www.chinakv.com
- 127.0.0.1 www.rising.com.cn
- 127.0.0.1 rising.com.cn
- 127.0.0.1 dl.jiangmin.com
- 127.0.0.1 jiangmin.com
Step 7
Search and delete these files
- %Windows%\360\360Safe\deepscan\ZhuDongFangYu.exe
- {Drive Letter}:\RECYCLER\S-5-4-62-7581032776-5377505530-562822366-6588\ZhuDongFangYu.exe
Step 8
Scan your computer with your Trend Micro product to delete files detected as PE_XIAOBAMINER.SM. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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