PUA.Win32.InstallCore.USMANHOBGR
Win32/InstallCore.Gen.C potentially unwanted application(NOD32); Application.InstallCore.GZ(BITDEFENDER);
Windows
Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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 does not have any propagation routine.
It does not have any backdoor routine.
It does not have any information-stealing capability.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
3,069,216 bytes
EXE
No
24 Dec 2019
Drops files, Connects to URLs/IPs
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.
Installation
This Potentially Unwanted Application adds the following folders:
- %User Temp%\inH{random numbers}
- %User Temp%\inH{random numbers}\css
- %User Temp%\inH{random numbers}\css\helpers
- %User Temp%\inH{random numbers}\css\sdk-ui
- %User Temp%\inH{random numbers}\css\sdk-ui\images
- %User Temp%\inH{random numbers}\images
- %User Temp%\inH{random numbers}\libs
- %User Temp%\inH{random numbers}\libs\localAssests
- %User Temp%\inH{random numbers}\libs\localAssests\icc
- %User Temp%\inH{random numbers}\libs\localAssests\icut
- %User Temp%\inH{random numbers}\locale
- %User Temp%\in{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(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 files:
- %User Temp%\inH{random numbers}\bootstrap_22799.html
- %User Temp%\inH{random numbers}\css\_functions.scss
- %User Temp%\inH{random numbers}\css\_helpers.scss
- %User Temp%\inH{random numbers}\css\_variables.scss
- %User Temp%\inH{random numbers}\css\helpers\_align.scss
- %User Temp%\inH{random numbers}\css\helpers\_backgrounds.scss
- %User Temp%\inH{random numbers}\css\helpers\_border-radius.scss
- %User Temp%\inH{random numbers}\css\helpers\_border.scss
- %User Temp%\inH{random numbers}\css\helpers\_clearfix.scss
- %User Temp%\inH{random numbers}\css\helpers\_colors.scss
- %User Temp%\inH{random numbers}\css\helpers\_display.scss
- %User Temp%\inH{random numbers}\css\helpers\_float.scss
- %User Temp%\inH{random numbers}\css\helpers\_lists.scss
- %User Temp%\inH{random numbers}\css\helpers\_margin.scss
- %User Temp%\inH{random numbers}\css\helpers\_padding.scss
- %User Temp%\inH{random numbers}\css\helpers\_positions.scss
- %User Temp%\inH{random numbers}\css\helpers\_typography.scss
- %User Temp%\inH{random numbers}\css\helpers\_visibility.scss
- %User Temp%\inH{random numbers}\css\helpers\_width-height.scss
- %User Temp%\inH{random numbers}\css\helpers\_z-index.scss
- %User Temp%\inH{random numbers}\css\ie6_main.css
- %User Temp%\inH{random numbers}\css\ie6_main.scss
- %User Temp%\inH{random numbers}\css\main.css
- %User Temp%\inH{random numbers}\css\main.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_browse.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_button.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_checkbox.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_progress-bar.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\images\button-bg.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg-corner.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg2.png
- %User Temp%\inH{random numbers}\css\swAgent.css
- %User Temp%\inH{random numbers}\csshover3.htc
- %User Temp%\inH{random numbers}\form.bmp.Mask
- %User Temp%\inH{random numbers}\images\BG.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Left.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Middle.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Right.png
- %User Temp%\inH{random numbers}\images\Close.png
- %User Temp%\inH{random numbers}\images\Close_Hover.png
- %User Temp%\inH{random numbers}\images\Color_Button.png
- %User Temp%\inH{random numbers}\images\Color_Button_Hover.png
- %User Temp%\inH{random numbers}\images\Dots.png
- %User Temp%\inH{random numbers}\images\Finish_Check.png
- %User Temp%\inH{random numbers}\images\Grey_Button.png
- %User Temp%\inH{random numbers}\images\Grey_Button_Hover.png
- %User Temp%\inH{random numbers}\images\Icon_Generic.png
- %User Temp%\inH{random numbers}\images\Loader.gif
- %User Temp%\inH{random numbers}\images\Pause_Button.png
- %User Temp%\inH{random numbers}\images\Progress.png
- %User Temp%\inH{random numbers}\images\ProgressBar.png
- %User Temp%\inH{random numbers}\images\Quick_Specs.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Left.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Middle.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Right.png
- %User Temp%\inH{random numbers}\images\Resume_Button.png
- %User Temp%\inH{random numbers}\images\sponsored.png
- %User Temp%\inH{random numbers}\libeay32.dll
- %User Temp%\inH{random numbers}\libs\localAssests\icc\icc_v5_8.cis
- %User Temp%\inH{random numbers}\libs\localAssests\icut\icut_v2_2.cis
- %User Temp%\inH{random numbers}\locale\CS.locale
- %User Temp%\inH{random numbers}\locale\DA.locale
- %User Temp%\inH{random numbers}\locale\DE.locale
- %User Temp%\inH{random numbers}\locale\EL.locale
- %User Temp%\inH{random numbers}\locale\EN.locale
- %User Temp%\inH{random numbers}\locale\ES.locale
- %User Temp%\inH{random numbers}\locale\FR.locale
- %User Temp%\inH{random numbers}\locale\ID.locale
- %User Temp%\inH{random numbers}\locale\IT.locale
- %User Temp%\inH{random numbers}\locale\JA.locale
- %User Temp%\inH{random numbers}\locale\KO.locale
- %User Temp%\inH{random numbers}\locale\NL.locale
- %User Temp%\inH{random numbers}\locale\NO.locale
- %User Temp%\inH{random numbers}\locale\PL.locale
- %User Temp%\inH{random numbers}\locale\PT.locale
- %User Temp%\inH{random numbers}\locale\RU.locale
- %User Temp%\inH{random numbers}\locale\SV.locale
- %User Temp%\inH{random numbers}\locale\TR.locale
- %User Temp%\inH{random numbers}\locale\ZH.locale
- %User Temp%\inH{random numbers}\ssleay32.dll
- %User Temp%\in{random characters}\{random characters}.tmp
- %User Temp%\{random characters}.log
(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 adds the following processes:
- "{execution file path}\{original file name}.exe" /_ShowProgress /mnl
Propagation
This Potentially Unwanted Application does not have any propagation routine.
Backdoor Routine
This Potentially Unwanted Application does not have any backdoor routine.
Rootkit Capabilities
This Potentially Unwanted Application does not have rootkit capabilities.
Information Theft
This Potentially Unwanted Application does not have any information-stealing capability.
Other Details
This Potentially Unwanted Application connects to the following website to send and receive information:
- http://ww4.setab{BLOCKED}.com
It does the following:
NOTES:
It shows the following progress bar once executed:
A message box will appear, saying that a product configuration is missing:
It does not exploit any vulnerability.
SOLUTION
9.850
2.246.00
25 Dec 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
Search and delete this file
- %User Temp%\inH{random numbers}\bootstrap_22799.html
- %User Temp%\inH{random numbers}\css\_functions.scss
- %User Temp%\inH{random numbers}\css\_helpers.scss
- %User Temp%\inH{random numbers}\css\_variables.scss
- %User Temp%\inH{random numbers}\css\helpers\_align.scss
- %User Temp%\inH{random numbers}\css\helpers\_backgrounds.scss
- %User Temp%\inH{random numbers}\css\helpers\_border-radius.scss
- %User Temp%\inH{random numbers}\css\helpers\_border.scss
- %User Temp%\inH{random numbers}\css\helpers\_clearfix.scss
- %User Temp%\inH{random numbers}\css\helpers\_colors.scss
- %User Temp%\inH{random numbers}\css\helpers\_display.scss
- %User Temp%\inH{random numbers}\css\helpers\_float.scss
- %User Temp%\inH{random numbers}\css\helpers\_lists.scss
- %User Temp%\inH{random numbers}\css\helpers\_margin.scss
- %User Temp%\inH{random numbers}\css\helpers\_padding.scss
- %User Temp%\inH{random numbers}\css\helpers\_positions.scss
- %User Temp%\inH{random numbers}\css\helpers\_typography.scss
- %User Temp%\inH{random numbers}\css\helpers\_visibility.scss
- %User Temp%\inH{random numbers}\css\helpers\_width-height.scss
- %User Temp%\inH{random numbers}\css\helpers\_z-index.scss
- %User Temp%\inH{random numbers}\css\ie6_main.css
- %User Temp%\inH{random numbers}\css\ie6_main.scss
- %User Temp%\inH{random numbers}\css\main.css
- %User Temp%\inH{random numbers}\css\main.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_browse.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_button.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_checkbox.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\_progress-bar.scss
- %User Temp%\inH{random numbers}\css\sdk-ui\images\button-bg.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg-corner.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg.png
- %User Temp%\inH{random numbers}\css\sdk-ui\images\progress-bg2.png
- %User Temp%\inH{random numbers}\css\swAgent.css
- %User Temp%\inH{random numbers}\csshover3.htc
- %User Temp%\inH{random numbers}\form.bmp.Mask
- %User Temp%\inH{random numbers}\images\BG.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Left.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Middle.png
- %User Temp%\inH{random numbers}\images\Blue_Button_Right.png
- %User Temp%\inH{random numbers}\images\Close.png
- %User Temp%\inH{random numbers}\images\Close_Hover.png
- %User Temp%\inH{random numbers}\images\Color_Button.png
- %User Temp%\inH{random numbers}\images\Color_Button_Hover.png
- %User Temp%\inH{random numbers}\images\Dots.png
- %User Temp%\inH{random numbers}\images\Finish_Check.png
- %User Temp%\inH{random numbers}\images\Grey_Button.png
- %User Temp%\inH{random numbers}\images\Grey_Button_Hover.png
- %User Temp%\inH{random numbers}\images\Icon_Generic.png
- %User Temp%\inH{random numbers}\images\Loader.gif
- %User Temp%\inH{random numbers}\images\Pause_Button.png
- %User Temp%\inH{random numbers}\images\Progress.png
- %User Temp%\inH{random numbers}\images\ProgressBar.png
- %User Temp%\inH{random numbers}\images\Quick_Specs.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Left.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Middle.png
- %User Temp%\inH{random numbers}\images\Regular_Button_Right.png
- %User Temp%\inH{random numbers}\images\Resume_Button.png
- %User Temp%\inH{random numbers}\images\sponsored.png
- %User Temp%\inH{random numbers}\libeay32.dll
- %User Temp%\inH{random numbers}\libs\localAssests\icc\icc_v5_8.cis
- %User Temp%\inH{random numbers}\libs\localAssests\icut\icut_v2_2.cis
- %User Temp%\inH{random numbers}\locale\CS.locale
- %User Temp%\inH{random numbers}\locale\DA.locale
- %User Temp%\inH{random numbers}\locale\DE.locale
- %User Temp%\inH{random numbers}\locale\EL.locale
- %User Temp%\inH{random numbers}\locale\EN.locale
- %User Temp%\inH{random numbers}\locale\ES.locale
- %User Temp%\inH{random numbers}\locale\FR.locale
- %User Temp%\inH{random numbers}\locale\ID.locale
- %User Temp%\inH{random numbers}\locale\IT.locale
- %User Temp%\inH{random numbers}\locale\JA.locale
- %User Temp%\inH{random numbers}\locale\KO.locale
- %User Temp%\inH{random numbers}\locale\NL.locale
- %User Temp%\inH{random numbers}\locale\NO.locale
- %User Temp%\inH{random numbers}\locale\PL.locale
- %User Temp%\inH{random numbers}\locale\PT.locale
- %User Temp%\inH{random numbers}\locale\RU.locale
- %User Temp%\inH{random numbers}\locale\SV.locale
- %User Temp%\inH{random numbers}\locale\TR.locale
- %User Temp%\inH{random numbers}\locale\ZH.locale
- %User Temp%\inH{random numbers}\ssleay32.dll
- %User Temp%\in{random characters}\{random characters}.tmp
- %User Temp%\{random characters}.log
Step 4
Search and delete this folder
- %User Temp%\inH{random numbers}
- %User Temp%\inH{random numbers}\css
- %User Temp%\inH{random numbers}\css\helpers
- %User Temp%\inH{random numbers}\css\sdk-ui
- %User Temp%\inH{random numbers}\css\sdk-ui\images
- %User Temp%\inH{random numbers}\images
- %User Temp%\inH{random numbers}\libs
- %User Temp%\inH{random numbers}\libs\localAssests
- %User Temp%\inH{random numbers}\libs\localAssests\icc
- %User Temp%\inH{random numbers}\libs\localAssests\icut
- %User Temp%\inH{random numbers}\locale
- %User Temp%\in{random characters}
Step 5
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.InstallCore.USMANHOBGR. 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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