PUA.Win32.DownloadAssistant.GA
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.
TECHNICAL DETAILS
5,445,632 bytes
EXE, ISO
Yes
15 Apr 2019
Downloads files, Connects to URLs/IPs, Displays windows
Arrival Details
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be manually installed by a user.
Installation
This Potentially Unwanted Application adds the following folders:
- %User Temp%\{random characters}
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)
Download Routine
This Potentially Unwanted Application saves the files it downloads using the following names:
- %User Temp%\{random characters}\{random characters}.exe - Installer file
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)
Other Details
This Potentially Unwanted Application does the following:
- It connects to the following URLs to download multiple installers:
- http://fort.{BLOCKED}otka.live/8ad2fd2ab3c3aa3247d8a25755ab9e1e/4b3fedd488b3a4b8fe830cd8f107158b.exe
- http://fort.{BLOCKED}otka.live/46d00aeb7c5f5b12d6fbf65340401145/c78f81a82077b1abb10e5c8603f3c177.exe
- http://static.{BLOCKED}.{BLOCKED}.202.116.clients.{BLOCKED}erver.de/api/webSilent/getInstaller?data={base-64 string}&mark1={numbers}&mark2={numbers}
- It reports the installation events to this URL:
- http://{BLOCKED}per.live/v2/events
- By default, it will attempt to download and install the following applications:
- Smart Application Controller
- @mail.ru
- SystemTable extension
- SeeScenicElf
- Light Cleaner
- Multitimer
- Search Awesome
- proxyservice
- View
- Tiger Trade
NOTES:
This PUA displays the following windows upon execution:
Clicking the link at the lower-left will access the following URL (Agreement Page): http://{BLOCKED}stant.net/agreement.html
By default, it will install multiple applications. However, the user can select which applications to install by clicking the Extra Options link.
The installer will hide itself after clicking the Download and save button.
It will open Internet Explorer to access http://{BLOCKED}to.com/electronics-workbench-64-bit-windows-7-download.zip.
SOLUTION
9.850
2.169.00
25 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
Identify and terminate files detected as PUA.Win32.DownloadAssistant.GA
- 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
Search and delete this file
- %User Temp%\{random characters}\{random characters}.exe
Step 5
Search and delete this folder
- %User Temp%\{random characters}
Step 6
Remove PUA.Win32.DownloadAssistant.GA by using its own Uninstall option
Step 7
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.DownloadAssistant.GA. 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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