Technical Information
Malicious functions
Executes the following
- '<SYSTEM32>\taskkill.exe' /F /IM RuntimeBroker_rustdesk.exe
Modifies file system
Creates the following files
- %TEMP%\nwg3827.tmp
- %LOCALAPPDATA%\jotek\custom.txt
- %LOCALAPPDATA%\jotek\desktop_drop_plugin.dll
- %LOCALAPPDATA%\jotek\desktop_multi_window_plugin.dll
- %LOCALAPPDATA%\jotek\dylib_virtual_display.dll
- %LOCALAPPDATA%\jotek\file_selector_windows_plugin.dll
- %LOCALAPPDATA%\jotek\flutter_custom_cursor_plugin.dll
- %LOCALAPPDATA%\jotek\flutter_gpu_texture_renderer_plugin.dll
- %LOCALAPPDATA%\jotek\flutter_windows.dll
- %LOCALAPPDATA%\jotek\jotek.exe
- %LOCALAPPDATA%\jotek\librustdesk.dll
- %LOCALAPPDATA%\jotek\printer_driver_adapter.dll
- %LOCALAPPDATA%\jotek\screen_retriever_plugin.dll
- %LOCALAPPDATA%\jotek\texture_rgba_renderer_plugin.dll
- %LOCALAPPDATA%\jotek\uni_links_desktop_plugin.dll
- %LOCALAPPDATA%\jotek\url_launcher_windows_plugin.dll
- %LOCALAPPDATA%\jotek\windowinjection.dll
- %LOCALAPPDATA%\jotek\window_manager_plugin.dll
- %LOCALAPPDATA%\jotek\window_size_plugin.dll
- %LOCALAPPDATA%\jotek\data\app.so
- %LOCALAPPDATA%\jotek\data\icudtl.dat
- %LOCALAPPDATA%\jotek\data\flutter_assets\assetmanifest.bin
- %LOCALAPPDATA%\jotek\data\flutter_assets\assetmanifest.json
- %LOCALAPPDATA%\jotek\data\flutter_assets\fontmanifest.json
- %LOCALAPPDATA%\jotek\data\flutter_assets\notices.z
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\actions.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\actions_mobile.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\address_book.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\android.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\arrow.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-apple.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-auth0.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-azure.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-default.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-facebook.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-github.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-gitlab.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-google.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\auth-okta.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\call_end.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\call_wait.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\chat.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\chat2.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\checkbox-outline.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\chevron_up_chevron_down.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\close.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\device_group.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\display.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\dots.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\file.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\file_transfer.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\folder.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\folder_new.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\fullscreen.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\fullscreen_exit.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\gestures.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\home.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\icon.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\icon.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\insecure.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\insecure_relay.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\kb_layout_iso.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\kb_layout_not_iso.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\keyboard.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\linux.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\logo.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\mac.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\message_24dp_5f6368.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\more.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\peer_searchbar.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\pinned.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\rec.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\record_screen.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\refresh.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\scam.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\screen.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\search.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\secure.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\secure_relay.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\tabbar.ttf
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\transfer.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\trash.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\unpinned.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\voice_call.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\voice_call_waiting.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\assets\win.svg
- %LOCALAPPDATA%\jotek\data\flutter_assets\fonts\materialicons-regular.otf
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\dash_chat_2\assets\placeholder.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\dash_chat_2\assets\profile_placeholder.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\flex_color_picker\assets\opacity.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\wakelock_plus\assets\no_sleep.js
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\window_manager\images\ic_chrome_close.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\window_manager\images\ic_chrome_maximize.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\window_manager\images\ic_chrome_minimize.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\packages\window_manager\images\ic_chrome_unmaximize.png
- %LOCALAPPDATA%\jotek\data\flutter_assets\shaders\ink_sparkle.frag
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriver-manifest.ini
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriver.cat
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriver.gpd
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriver.inf
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriverrenderfilter-pipelineconfig.xml
- %LOCALAPPDATA%\jotek\drivers\rustdeskprinterdriver\rustdeskprinterdriverrenderfilter.dll
- %LOCALAPPDATA%\jotek\usbmmidd_v2\idd_instructions.txt
- %LOCALAPPDATA%\jotek\usbmmidd_v2\license.txt
- %LOCALAPPDATA%\jotek\usbmmidd_v2\usbmmidd.cat
- %LOCALAPPDATA%\jotek\usbmmidd_v2\usbmmidd.inf
- %LOCALAPPDATA%\jotek\usbmmidd_v2\x64\usbmmidd.dll
- %LOCALAPPDATA%\jotek\meta.toml
- %LOCALAPPDATA%\jotek\runtimebroker_rustdesk.exe
- %APPDATA%\jotek\log\jotek_rcurrent.log
- %TEMP%\shared_memory-rs\shmem_ed6b7472e7b59d5
- %ALLUSERSPROFILE%\jotek\shared_memory_portable_service
- %APPDATA%\jotek\config\jotek2.2472_threadid(20)_1770084255294786900
- %APPDATA%\jotek\config\jotek2.2472_threadid(20)_1770084255771556400
- %APPDATA%\jotek\log\portable-service\jotek_rcurrent.log
- %APPDATA%\jotek\config\jotek.2472_threadid(21)_1770084256398918100
- %APPDATA%\jotek\log\check-hwcodec-config\jotek_rcurrent.log
- %APPDATA%\jotek\config\jotek_hwcodec.2472_threadid(15)_1770084256914388200
- %WINDIR%\serviceprofiles\localservice\appdata\roaming\jotek\log\jotek_rcurrent.log
- %APPDATA%\jotek\config\jotek.2472_threadid(33)_1770084258524754100
- %APPDATA%\jotek\config\jotek2.2472_threadid(11)_1770084258617193400
- %APPDATA%\jotek\config\jotek.2472_threadid(11)_1770084258650565600
- %APPDATA%\jotek\config\jotek.2472_threadid(11)_1770084258657399800
- %APPDATA%\jotek\config\jotek.2472_threadid(15)_1770084258921312500
- %APPDATA%\jotek\config\jotek2.2472_threadid(31)_1770084259451520000
Deletes following files that it created itself
- %TEMP%\nwg3827.tmp
Moves the following files
- from %APPDATA%\jotek\config\jotek2.2472_threadid(20)_1770084255294786900 to %APPDATA%\jotek\config\jotek2.toml
- from %APPDATA%\jotek\config\jotek2.2472_threadid(20)_1770084255771556400 to %APPDATA%\jotek\config\jotek2.toml
- from %APPDATA%\jotek\config\jotek.2472_threadid(21)_1770084256398918100 to %APPDATA%\jotek\config\jotek.toml
- from %APPDATA%\jotek\config\jotek_hwcodec.2472_threadid(15)_1770084256914388200 to %APPDATA%\jotek\config\jotek_hwcodec.toml
- from %APPDATA%\jotek\config\jotek.2472_threadid(33)_1770084258524754100 to %APPDATA%\jotek\config\jotek.toml
- from %APPDATA%\jotek\config\jotek2.2472_threadid(11)_1770084258617193400 to %APPDATA%\jotek\config\jotek2.toml
- from %APPDATA%\jotek\config\jotek.2472_threadid(11)_1770084258650565600 to %APPDATA%\jotek\config\jotek.toml
- from %APPDATA%\jotek\config\jotek.2472_threadid(11)_1770084258657399800 to %APPDATA%\jotek\config\jotek.toml
- from %APPDATA%\jotek\config\jotek.2472_threadid(15)_1770084258921312500 to %APPDATA%\jotek\config\jotek.toml
- from %APPDATA%\jotek\config\jotek2.2472_threadid(31)_1770084259451520000 to %APPDATA%\jotek\config\jotek2.toml
Network activity
Connects to
- 'ru####sk.jotek.de':21116
- 'ru####sk.jotek.de':21115
- 'cr#.#ectigo.com':80
- 'ru####sk.jotek.de':443
- 'x1.#.lencr.org':80
TCP
HTTP GET requests
- http://cr#.#ectigo.com/SectigoPublicCodeSigningRootR46.p7c
- http://x1.#.lencr.org/
Other
- 'ru####sk.jotek.de':21116
- 'ru####sk.jotek.de':21115
- 'ru####sk.jotek.de':443
UDP
- DNS ASK ru####sk.jotek.de
- DNS ASK stun.l.google.com
- DNS ASK st##.#loudflare.com
- DNS ASK st##.#extcloud.com
- DNS ASK cr#.#ectigo.com
- DNS ASK x1.#.lencr.org
- 'ru####sk.jotek.de':21116
Miscellaneous
Searches for the following windows
- ClassName: '' WindowName: ''
- ClassName: 'FLUTTER_RUNNER_WIN32_WINDOW' WindowName: 'JOTEK'
Creates and executes the following
- '%LOCALAPPDATA%\jotek\jotek.exe'
- '%LOCALAPPDATA%\jotek\jotek.exe' --portable-service
- '%LOCALAPPDATA%\jotek\jotek.exe' --check-hwcodec-config
- '%LOCALAPPDATA%\jotek\jotek.exe' --run-as-system
Executes the following
- '<SYSTEM32>\icacls.exe' %ALLUSERSPROFILE%\JOTEK /grant *S-1-1-0:(OI)(CI)F /T
- '<SYSTEM32>\icacls.exe' %ALLUSERSPROFILE%\JOTEK\shared_memory_portable_service /grant *S-1-1-0:(OI)(CI)F /T
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /IM RuntimeBroker_rustdesk.exe"
- '%LOCALAPPDATA%\jotek\jotek.exe' --portable-service' (with hidden window)
