HackTool.Win32.Patcher.H
HackTool:Win32/DllPatch!pz (MICROSOFT)
Windows
Threat Type: Hacking Tool
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Hacking Tool 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
Arrival Details
This Hacking Tool 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 Hacking Tool drops the following files:
- %All Users Profile%\Microsoft\Windows\WER\ReportArchive\NonCritical_iexplore.{Random Chacters}\Report.wer
- %Application Data%\Microsoft\Windows\PrivacIE\index.dat
- %Application Data%\Microsoft\Internet Explorer\DOMStore\index.dat
- %Application Data%\Microsoft\Internet Explorer\DOMStore\SA58SA4T\www.{BLOCKED}yg [1].xml
- %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{GUID}.dat
- %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{GUID}.dat
- %Temporary Internet Files%\Content.IE5\U90PRGHH\forum[1].php
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_common[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_widthauto[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\common[1].js
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_forum_index[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\portal[1].js
- %Temporary Internet Files%\Content.IE5\E6P952NO\md5[1].js
- %Temporary Internet Files%\Content.IE5\I5U7DXRH\logo[1].png
- %Temporary Internet Files%\Content.IE5\U90PRGHH\lewei_nv[1].png
- %Temporary Internet Files%\Content.IE5\E6P952NO\switch_width[1].png
- %Temporary Internet Files%\Content.IE5\I5U7DXRH\pt_item[1].png
- %Temporary Internet Files%\Content.IE5\U90PRGHH\collapsed_yes[1].gif
- %Cookies%\{Username}.chinapyg[1].txt
- %Cookies%\{Username}.chinapyg[2].txt
- %Favorites%\Links\Suggested Sites.url:favicon
- %Favorites%\Links\Suggested Sites.url
It adds the following processes:
- %Program Files%\Internet Explorer
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Hacking Tool adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\LinksBar\ItemCache\
0
Path = %Favorites%\Links\Suggested Sites.url
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Suggested Sites
SlicePath = %Favorites%\Links\Suggested Sites.url
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap
AutoDetect = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap
UNCAsIntranet = 0
Other Details
This Hacking Tool adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Suggested Sites
It connects to the following possibly malicious URL:
- https://www.{BLOCKED}yg.com/forum.php = mal
- https://www.{BLOCKED}yg.com/data/cache/style_14_common.css?h80
- https://www.{BLOCKED}yg.com/data/cache/common.js?h80
- https://www.{BLOCKED}yg.com/data/cache/md5.js?h80
- https://www.{BLOCKED}yg.com/data/cache/forum.js?h80
- https://www.{BLOCKED}yg.com/data/cache/portal.js?h80
- https://www.{BLOCKED}yg.com/data/cache/logging.js?h80
SOLUTION
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
Delete this registry key
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\Internet Explorer\
- Suggested Sites
- Suggested Sites
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\Internet Explorer\Suggested Sites
- SlicePath = %Favorites%\Links\Suggested Sites.url
- SlicePath = %Favorites%\Links\Suggested Sites.url
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\LinksBar\ItemCache\0
- Path = %Favorites%\Links\Suggested Sites.url
- Path = %Favorites%\Links\Suggested Sites.url
Step 5
Restore this modified 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.
- RegKey: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
- UNCAsIntranet = 0
- UNCAsIntranet = 1
- RegKey: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
- AutoDetect = 1
- AutoDetect = 0
Step 6
Search and delete this file
- %All Users Profile%\Microsoft\Windows\WER\ReportArchive\NonCritical_iexplore.{Random Chacters}\Report.wer
- %Application Data%\Microsoft\Windows\PrivacIE\index.dat
- %Application Data%\Microsoft\Internet Explorer\DOMStore\index.dat
- %Application Data%\Microsoft\Internet Explorer\DOMStore\SA58SA4T\www.chinapyg[1].xml
- %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{GUID}.dat
- %AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{GUID}.dat
- %Temporary Internet Files%\Content.IE5\U90PRGHH\forum[1].php
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_common[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_widthauto[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\common[1].js
- %Temporary Internet Files%\Content.IE5\01JIXJH3\style_14_forum_index[1].css
- %Temporary Internet Files%\Content.IE5\01JIXJH3\portal[1].js
- %Temporary Internet Files%\Content.IE5\E6P952NO\md5[1].js
- %Temporary Internet Files%\Content.IE5\I5U7DXRH\logo[1].png
- %Temporary Internet Files%\Content.IE5\U90PRGHH\lewei_nv[1].png
- %Temporary Internet Files%\Content.IE5\E6P952NO\switch_width[1].png
- %Temporary Internet Files%\Content.IE5\I5U7DXRH\pt_item[1].png
- %Temporary Internet Files%\Content.IE5\U90PRGHH\collapsed_yes[1].gif
- %Cookies%\{Username}.chinapyg[1].txt
- %Cookies%\{Username}.chinapyg[2].txt
- %Favorites%\Links\Suggested Sites.url:favicon
Step 7
Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.Patcher.H. 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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