TrojanSpy.Win32.URSNIF.TIABOEBF
Trojan.Win32.Miner.vqpc(Kaspersky); Trojan:Win32/Fuerboos.A!cl(Microsoft); Win32:BootkitX-gen [Rtk](Avast)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Dropped by other malware, Downloaded from the Internet
This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It connects to certain websites to send and receive information. It deletes the initially executed copy of itself.
TECHNICAL DETAILS
524,288 bytes
EXE
Yes
17 Apr 2019
Connects to URLs/IPs, Steals information
Arrival Details
This Trojan Spy 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 Spy drops the following files:
- %User Temp%\{random filename}.bin
- %User Temp%\{random filename}.bin1
- %User Temp%\{random filename}.bi1 - contains the list of computer or network resources
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It drops the following copies of itself into the affected system:
- %Application Data%\Microsoft\{string1}{string2}\{string1}{string2}.exe
where:
{string1} = first four letters of a dll file under System directory
{string2} = last four letters of a dll file under System directory
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It injects codes into the following process(es):
- explorer.exe
Autostart Technique
This Trojan Spy adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{string1}{string2} = "%Application Data%\Microsoft\{string1}{string2}\{string1}{string2}.exe"
It adds the following lines or registry entries as part of its routine:
- HKEY_CURRENT_USER\Software\AppDataLow\Software\Microsoft\{GUID}
{UID} = "{hex value}" - HKEY_CURRENT_USER\Software\AppDataLow\Software\Microsoft\{GUID}
{Value Name} = "{data}"
where {Value Name} may be any of the following:- Main
- Block
- Temp
- Client
- Ini
- Keys
- Scr
- LastTask
- LastConfig
- CrHook
- OpHook
- Exec
- TorClient
- TorCrc
- Install
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
EnableSPDY3_0 = "0"
Other System Modifications
This Trojan Spy adds the following registry keys:
HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}
HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}\
Vars
HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}\
Files
HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}\
Config
Information Theft
This Trojan Spy gathers the following data:
- Computer Name
- Digital Certificates
- Cookies
- Keyboard Logs
- Clipboard Logs
- Captured Screenshot
- Email Credentials
- Running processes and services
- Installed device drivers
- Installed Programs
- System Information (Please see notes for more details)
- IP Address
Stolen Information
This Trojan Spy sends the gathered information via HTTP POST to the following URL:
- http://{BLOCKED}-medicine.at/images/{random path}.{bmp/png}
Other Details
This Trojan Spy connects to the following website to send and receive information:
- http://{BLOCKED}-medicine.at/images/{random path}.{gif.jpeg}
- http://{BLOCKED}lzaelooop11.club/jd/t32.bin
It does the following:
- Saves stolen information in a file and then uploads it.
- Monitors Internet browsing activities.
- Hooks APIs of target process.
- Disables SPDY protocol in Mozilla Firefox.
- It terminates itself if it runs under a virtual machine or sandbox by checking the following strings against Plug and Play devices:
- vbox
- qemu
- vmware
- virtual hd
- Executes commands to gather information:
- cmd /C "nslookup myip.opendns.com resolver1.opendns.com > %User Temp%\{random filename}.bin"
- cmd /C "systeminfo.exe > %User Temp%\{random filename}.bin"
- cmd /C "net view >> %User Temp%\{random filename}.bin"
- cmd /C "nslookup 127.0.0.1 >> %User Temp%\{random filename}.bin"
- cmd /C "tasklist.exe /SVC >> %User Temp%\{random filename}.bin"
- cmd /C "driverquery.exe >> %User Temp%\{random filename}.bin"
- cmd /C "reg.exe query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" /s >> %User Temp%\{random filename}.bin"
- cmd /U /C "type %User Temp%\{random filename}.bin1 > %User Temp%\{random filename}.bin & del %User Temp%\{random filename}.bin"
- The file systeminfo.exe returns the following system information:
- Host Name
- OS Name, Version, Manufacturer
- Configuration and Build Type
- Registered Owner and Organization
- Product ID
- Original Install Date
- System Up Time
- System Manufacturer, Model and type
- Processor(s)
- BIOS version
- Windows and System directory
- Boot Device
- System and Input Locale
- Time Zone
- Total and Available Memory
- Virtual Memory information (Max, Available, In Use)
- Page file locations
- Domain
- Logon server
- Hotfix(es)
- Network card(s)
It deletes the initially executed copy of itself
SOLUTION
9.850
14.944.02
17 Apr 2019
14.945.00
18 Apr 2019
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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
Restart in Safe Mode
Step 4
Delete this registry key
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_CURRENT_USER\Software\AppDataLow\Software\Microsoft\
- {GUID}
- {GUID}
Step 5
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {string1}{string2} = "%Application Data%\Microsoft\{string1}{string2}\{string1}{string2}.exe"
- {string1}{string2} = "%Application Data%\Microsoft\{string1}{string2}\{string1}{string2}.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
- EnableSPDY3_0 = "0"
- EnableSPDY3_0 = "0"
Step 6
Search and delete this file
- %User Temp%\{random filename}.bin
- %User Temp%\{random filename}.bin1
- %User Temp%\{random filename}.bi1
- %Application Data%\Microsoft\{string1}{string2}\{string1}{string2}.exe
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.URSNIF.TIABOEBF. 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 this Knowledge Base page for more information.
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