Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Fnloppi' = '%APPDATA%\MICROS~1\Windows\STARTM~1\Programs\MCCXhB\iexpress.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\fmfjmzrrjvf
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\walmbq.lnk
Malicious functions
Injects code into
the following system processes:
- <SYSTEM32>\csrss.exe
the following user processes:
- iexplore.exe
Hooks functions
in browsers
- firefox.exe process, nss3.dll module
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\rdpinput.exe
- <SYSTEM32>\systempropertieshardware.exe
- <SYSTEM32>\bdeuisrv.exe
- <SYSTEM32>\systempropertiesremote.exe
- <SYSTEM32>\rstrui.exe
- <SYSTEM32>\iexpress.exe
- <SYSTEM32>\rdpsa.exe
- <SYSTEM32>\unregmp2.exe
the following user processes:
- iexplore.exe
Modifies file system
Creates the following files
- %LOCALAPPDATA%\feoyx7obo\wtsapi32.dll
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ko-kr\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ja-jp\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\it-it\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\is-is\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\hu-hu\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\hr-hr\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\he-il\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\gl-es\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fr-fr\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\lt-lt\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fr-ch\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fr-ca\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fr-be\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fi-fi\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\eu-es\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\et-ee\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-xl\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\fr-xf\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-id\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\lv-lv\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\zh-cn\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\vi-vn\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\uk-ua\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\tr-tr\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\th-th\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\sv-se\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\sr-latn-rs\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\sl-si\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-us\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\lb-lu\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ro-ro\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\pt-pt\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\pt-br\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\pl-pl\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\nn-no\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\nl-nl\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\nl-be\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\nb-no\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ru-ru\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ms-my\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-mx\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-es\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-co\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{7303707f-5807-4495-a0d9-0a019805f686}\config_132494844928050000.json
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ar-sa\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\metadata.json
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content.cab
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\config_132494844990470000.json
- %APPDATA%\icqm\icq\html\tr\loading\weod\unregmp2.exe
- %APPDATA%\icqm\icq\html\tr\loading\weod\version.dll
- %LOCALAPPDATA%\zgbfs\unregmp2.exe
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\zh-hk\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ca-es\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\updatenotificationcatalog.json
- %APPDATA%\microsoft\windows\start menu\programs\mccxhb\iexpress.exe
- %APPDATA%\microsoft\windows\start menu\programs\mccxhb\version.dll
- %LOCALAPPDATA%\ssnqkprk\iexpress.exe
- %LOCALAPPDATA%\ssnqkprk\version.dll
- %APPDATA%\thunderbird\profiles\6giakrlp.default\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}\pczqhive\bdeuisrv.exe
- %APPDATA%\thunderbird\profiles\6giakrlp.default\extensions\{e2fda1a4-762b-4020-b5ad-a41df1933103}\pczqhive\wtsapi32.dll
- %LOCALAPPDATA%\feoyx7obo\bdeuisrv.exe
- %LOCALAPPDATA%\zgbfs\version.dll
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\sk-sk\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\ca-es-valencia\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\de-at\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\cs-cz\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-cl\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\es-ar\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-za\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-us\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-ph\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-nz\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-my\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\da-dk\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-in\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\bg-bg\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-hk\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-gb\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-ca\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-au\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\el-gr\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\de-de\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\de-ch\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\en-ie\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
- %ProgramFiles%\unp\updatenotificationmgr\unpcampaigns\{222ddb7c-4cb2-47ea-9193-8fb14e6b9e60}\content1\zh-tw\8a27f2ca-9fcd-4181-9520-7fa56b86b178.xml
Moves the following files
- from %ProgramFiles%\unp\logs\updatenotificationpipeline.001.etl to %ProgramFiles%\unp\logs\updatenotificationpipeline.002.etl
Substitutes the following files
- %ProgramFiles%\UNP\Logs\UpdateNotificationPipeline.001.etl
Network activity
TCP
HTTP GET requests
- http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?51##############
- http://dl.delivery.mp.microsoft.com/filestreamingservice/files/0c5390a3-cf80-41fa-8037-771fb7b66e00/MUSE-19H1_EOS.cab
UDP
- DNS ASK go.microsoft.com
- DNS ASK share.microsoft.com
- DNS ASK settings-win.data.microsoft.com
- DNS ASK maps.windows.com
- DNS ASK dl.delivery.mp.microsoft.com
- DNS ASK ar#.msn.com
Miscellaneous
Creates and executes the following
- '%LOCALAPPDATA%\feoyx7obo\bdeuisrv.exe'
- '%LOCALAPPDATA%\ssnqkprk\iexpress.exe'
- '%LOCALAPPDATA%\zgbfs\unregmp2.exe'
Executes the following
- '<SYSTEM32>\devicecensus.exe'
- '<SYSTEM32>\apphostregistrationverifier.exe'
- '<SYSTEM32>\regsvr32.exe' /s <Full path to file>
- '<SYSTEM32>\devicecensus.exe' UserCxt
