Arrival Details
This Worm 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 Worm drops the following copies of itself into the affected system:
- %Application Data%\NewApp\NewApp.exe
(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).)
Autostart Technique
This Worm modifies the following registry entries to ensure it automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
NewApp = %Application Data%\NewApp\NewApp.exe
Propagation
This Worm drops the following copies of itself in all physical and removable drives:
- {drive letter}:\{GUID}.exe
Information Theft
This Worm gathers the following data:
- User Name
- Computer Name
- OS Name
- OS Version Platform
- OS Version
- Processor Name
- Amount of Physical Memory
- Username and Password from the following applications:
- 360 Browser
- 7Star
- Amigo
- BlackHawk
- Brave Browser
- CentBrowser
- Chedot
- Chrome
- Chromium
- Citrio
- Claws-mail
- CocCoc
- Comodo Dragon
- CoolNovo
- Coowon
- CoreFTP
- CyberFox
- DynDNS
- Edge
- Elements Browser
- Epic Privacy Browser
- Eudora
- Firefox
- FlashFXP
- Flock
- Foxmail
- FTPCommander
- FTPGetter
- FTP Navigator
- IceCat
- IceDragon
- IncrediMail
- Internet Download Manager
- Internet Explorer
- Ipswitch
- Iridium Browser
- jDownloader
- K-Meleon
- Kometa
- Liebao Browser
- Mozilla
- No-IP
- OpenVPN
- Opera Browser
- Opera Mail
- Orbitum
- Outlook
- PaleMoon
- Paltalk
- Pidgin
- Pocomail
- Postbox
- Psi/Psi+
- QIP Surf
- QQ Browser
- RimArts
- Safari
- SeaMonkey
- Sleipnir 6
- SmartFTP
- Sputnik
- SRWare Iron
- The Bat!
- Thunderbird
- Torch Browser
- Trillian
- UC Browser
- uCozMedia
- Uran
- Vitalwerks
- Vivaldi
- WaterFox
- Wi-Fi
- WinSCP
- WS_FTP
- Yandex Browser
Stolen Information
This Worm sends the data it gathers to the following email addresses via SMTP:
- {BLOCKED}pera@{BLOCKED}thospitals.org
Other Details
This Worm does the following:
- It drops .lnk files in the removable drives using the names of the folders/files located on the said drives as filenames. It then hides the original folders/files to trick users on opening the file.
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
- Troj.Win32.TRX.XXPE50FFF033
Step 2
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 3
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 4
Restart in Safe Mode
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To restart in Safe Mode:
• For Windows 7 and Windows Server 2008 (R2) users
- Restart your computer.
- Press F8 after the Power-On Self Test (POST) routine is done. If the Advanced Boot Options menu does not appear, try restarting and then pressing F8 several times after the POST screen is displayed.
- On the Advanced Boot Options menu, use the arrow keys to select the Safe Mode option, and then press Enter.
• For Windows 8, Windows 8.1, and Windows Server 2012 users
- Access the Charms bar by moving your mouse pointer to the upper right corner of the screen.
- Move your mouse pointer down and click Settings>Change your PC Settings.
- In the left panel, click General.
- In the right panel, scroll down to the bottom to find the Advanced startup section, then click the Restart now button and wait for the system to restart.
- In the Advanced Startup menu, click Troubleshoot>Advanced Options>Startup Settings>Restart and wait for the system to restart.
- In the Startup Settings menu, press 4 to enable safe mode.
• For Windows 10 users
- Press Windows logo key + I on your keyboard to open Settings. If that doesn't work, select the Start button, then select Settings.
- Select Update & Security > Recovery.
- Under Advanced startup, select Restart now.
- After your PC restarts to the Choose an option screen, select Troubleshoot > Advcanced options > Startup settings > Restart.
- After your PC restarts, you'll see a list og options. Select 4 or press F4 to start your PC in Safe Mode.
Step 5
Delete this registry key
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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
- NewApp = %Application Data%\NewApp\NewApp.exe
To delete registry keys this malware/grayware created:
- Open Registry Editor. To do this:
» For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, 8.1, 10, and Server 2012 (R2) users, right-click on the lower left corner of the screen, click Run, type regedit in the text box provided, and then press Enter. - In the left panel of the Registry Editor window, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run - Still in the left panel, locate and delete the key:
NewApp = %Application Data%\NewApp\NewApp.exe - Close Registry Editor.
Step 6
Search and delete these files
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There may be some files that are hidden. Please make sure you check the
Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
- %Application Data%\NewApp\NewApp.exe
- {drive letter}:\{GUID}.exe
To delete malware/grayware files:
For Windows 7 and Server 2008 (R2), 8, 8.1, 10, and Server 2012 (R2):
- Open a Windows Explorer window.
- For Windows 7 and Server 2008 (R2) users, click Start>Computer.
- For Windows 8, 8.1, 10, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
- In the Search Computer/This PC input box, type:
- %Application Data%\NewApp\NewApp.exe
- {drive letter}:\{GUID}.exe
- Once located, select the file then press SHIFT+DELETE to delete it.
- Repeat the said steps for all files listed.
*Note: Read the following Microsoft page if these steps do not work on Windows 7 and Server 2008 (R2).
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.Win32.NEGASTEAL.B. 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 Worm.Win32.NEGASTEAL.B. 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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