JAVA_ADWIND.AUSWV
Trojan.Java.Adwind.ez (Kaspersky), JAVA/Adwind (AhnLab-V3), Trojan:Java/QRat (Microsoft)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Spammed via email
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It does not have any propagation routine.
It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.
It gathers information and reports it to its servers.
TECHNICAL DETAILS
527,822 bytes
JAR
Yes
14 Mar 2017
Steals information, Compromises system security, Connects to URLs/IPs
Arrival Details
This Trojan arrives as an attachment to the following email messages spammed by other malware/grayware or malicious users:
Installation
This Trojan adds the following folders:
- %User Profile%\muTRJLOWzHy
- %User Profile%\muTRJLOWzHy\GWzhoybRCno <- plugin folder
- %Application Data%\Oracle
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following copies of itself into the affected system:
- %User Temp%\OPIUYTUYDGCJVHJBJLK270292836425235605.JAR
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following file(s)/component(s):
- %User Temp%\m{Random Number}.tmp <- temporary file for _{Random Number}.class
- %User Temp%\_{Random Number}.class <- class to be loaded by main executable JAR
- %User Profile%\muTRJLOWzHy\ID.txt <- contains UUID
- %System%\test.txt <- used to check for admin rights
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It drops and executes the following files:
- %User Profile%\muTRJLOWzHy\xykavqTsiUW.TxkgPG <- main executable JAR
- %User Temp%\Retrive{Random Number}.vbs <- Queries installed firewall and AV products
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It terminates the execution of the copy it initially executed and executes the copy it drops instead.
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
cHookStUYSs = "%Application Data%\Oracle\bin\javaw.exe" -jar "%User Profile%\muTRJLOWzHy\xykavqTsiUW.TxkgPG"
Propagation
This Trojan does not have any propagation routine.
Backdoor Routine
This Trojan executes the following commands from a remote malicious user:
- Download and Execute Plugins/Files
- Update itself
- Uninstall itself
- Restart Connection
It connects to the following websites to send and receive information:
- {BLOCKED}.{BLOCKED}.65.32:2180
As of this writing, the said servers are currently inaccessible.
Other Details
This Trojan does the following:
- Copies of files under Java Installation folder to the following folder:
- %Application Data%\Oracle
- Drops the following file to the %System% folder to check for Admin Rights:
- %System%\test.txt
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It gathers the following information and reports it to its servers:
- Local IP
- User Name
- Computer Name
- If User is Admin
- OS (Name, Version, Architecture)
- Country
- RAM Size
- Java Version
- If running in VMware or Vbox environment
- Installed Firewall
- Installed AV Products
SOLUTION
9.850
13.278.01
15 Mar 2017
13.279.00
16 Mar 2017
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
Restart in Safe Mode
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- cHookStUYSs = "%Application Data%\Oracle\bin\javaw.exe" -jar "%User Profile%\muTRJLOWzHy\xykavqTsiUW.TxkgPG"
- cHookStUYSs = "%Application Data%\Oracle\bin\javaw.exe" -jar "%User Profile%\muTRJLOWzHy\xykavqTsiUW.TxkgPG"
Step 5
Search and delete this folder
- %User Profile%\muTRJLOWzHy
- %Application Data%\Oracle
Step 6
Search and delete this file
- %User Temp%\m{Random Number}.tmp <- temporary file for _{Random Number}.class
- %User Temp%\_{Random Number}.class <- class to be loaded by main executable JAR
- %System%\test.txt <- used to check for admin rights
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as JAVA_ADWIND.AUSWV. 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 8
Scan your computer with your Trend Micro product to delete files detected as JAVA_ADWIND.AUSWV. 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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