TrojanSpy.Win32.FAREIT.UHBAZCLIS
VirTool:Win32/Injector.AN (Microsoft); Mal/VBCheMan-C, Mal/VBCheMan-C (Sophos)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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.
TECHNICAL DETAILS
188,416 bytes
EXE
Yes
11 Feb 2020
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 creates the following folders:
- %System Root%\process
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
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
4X2YZW9UZIWEVE7WEMELTG = "%System Root%\process\FC78BA65645.exe"
Other System Modifications
This Trojan Spy deletes the following files:
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies-nontor.xml
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite-journal
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100107.log
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\sessionstore.js
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\sessionstore.bak
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.txt
(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).. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft Windows
000000544B562374 = "{random characters}"
HKEY_CURRENT_USER\Software\Microsoft Windows
00000054ED520807 = "{random characters}"
HKEY_CURRENT_USER\Software\Microsoft Windows
0000005D13BD7654 = "{random characters}"
Dropping Routine
This Trojan Spy drops the following files:
- %User Temp%\6SQFC19.exe
- %System Root%\process
- %AppDataLocal%\Microsoft\Windows\WebCache\V01.log
- %AppDataLocal%\Microsoft\Windows\WebCache\V010010A.log
- %AppDataLocal%\Microsoft\Windows\WebCache\V01tmp.log
- %User Temp%\6SQA7F1.exe
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100108.log
- %System Root%\process\25B47000A80F07C
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100109.log
- %System Root%\process\FC78BA65645.exe
(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).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other Details
This Trojan Spy connects to the following possibly malicious URL:
- http://www.{BLOCKED}oft.com
- http://{BLOCKED}y.biz
- http://{BLOCKED}rls.com
- http://{BLOCKED}rmore.com
- http://{BLOCKED}o.com
- {BLOCKED}17.237
This report is generated via an automated analysis system.
SOLUTION
9.850
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
Restart in Safe Mode
Step 3
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
- 4X2YZW9UZIWEVE7WEMELTG = "%System Root%\process\FC78BA65645.exe"
- In HKEY_CURRENT_USER\Software\Microsoft Windows
- 000000544B562374 = "{random characters}"
- In HKEY_CURRENT_USER\Software\Microsoft Windows
- 00000054ED520807 = "{random characters}"
- In HKEY_CURRENT_USER\Software\Microsoft Windows
- 0000005D13BD7654 = "{random characters}"
Step 4
Search and delete these components
- %User Temp%\6SQFC19.exe
- %System Root%\process
- %AppDataLocal%\Microsoft\Windows\WebCache\V01.log
- %AppDataLocal%\Microsoft\Windows\WebCache\V010010A.log
- %AppDataLocal%\Microsoft\Windows\WebCache\V01tmp.log
- %User Temp%\6SQA7F1.exe
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100108.log
- %System Root%\process\25B47000A80F07C
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100109.log
- %System Root%\process\FC78BA65645.exe
Step 5
Search and delete this folder
- %System Root%\process
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.FAREIT.UHBAZCLIS. 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.
Step 7
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies-nontor.xml
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite-journal
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite
- %AppDataLocal%\Microsoft\Windows\WebCache\V0100107.log
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\sessionstore.js
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\sessionstore.bak
- %Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.txt
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