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  1. What is Chistilka?The Malwarebytes research team has determined that Chistilka is a "system optimizer". These so-called "system optimizers" use intentional false positives to convince users that their systems have problems. Then they try to sell you their software, claiming it will remove these problems.More information can be found on our Malwarebytes Labs blog.How do I know if I am infected with Chistilka?This is how the main screen of the system optimizer looks:You will find these icons in your taskbar, your startmenu, and on your desktop:and see this warning during install:and this screen during "operations":You may see this entry in your list of installed programs:How did Chistilka get on my computer?These so-called system optimizers use different methods of getting installed. This particular one was downloaded from their website:How do I remove Chistilka?Our program Malwarebytes can detect and remove this potentially unwanted application. Please download Malwarebytes to your desktop. Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program. Then click Finish. Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu. If another update of the definitions is available, it will be implemented before the rest of the scanning procedure. When the scan is complete, make sure that all Threats are selected, and click Remove Selected. Restart your computer when prompted to do so. Is there anything else I need to do to get rid of Chistilka? No, Malwarebytes removes Chistilka completely. How would the full version of Malwarebytes help protect me?We hope our application and this guide have helped you eradicate this system optimizer.As you can see below the full version of Malwarebytes would have protected you against the Chistilka installer. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late. and we block access to their domain: Technical details for expertsYou may see these entries in FRST logs: (KRONA, OOO -> ) C:\Users\{username}\Desktop\bin-2.21.249.exe S2 Chistilka; C:\ProgramData\Чистилка\Чистилка.exe [5589576 2019-09-09] () [File not signed] C:\Users\Public\Desktop\Чистилка.lnk C:\ProgramData\Чистилка C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка Чистилка (HKLM-x32\...\Чистилка) (Version: 2.21.249 - Чистилка) Shortcut: C:\Users\Public\Desktop\Чистилка.lnk -> C:\ProgramData\Чистилка\Чистилка.exe () <==== Cyrillic Alterations made by the installer: File system details [View: All details] (Selection) --------------------------------------------------- Adds the folder C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Чистилка Adds the file Чистилка Uninstall.lnk"="9/9/2019 10:53 AM, 1711 bytes, A Adds the file Чистилка.lnk"="9/9/2019 10:53 AM, 1701 bytes, A Adds the folder C:\ProgramData\Чистилка Adds the file config.dat"="9/9/2019 10:53 AM, 399332 bytes, A Adds the file settings.json"="9/9/2019 10:53 AM, 445 bytes, A Adds the file Чистилка.exe"="9/9/2019 9:31 AM, 5589576 bytes, A Adds the folder C:\ProgramData\Чистилка\logs Adds the file TKiller-2-2019-09-09-10-53-21.log"="9/9/2019 10:53 AM, 64650 bytes, A In the existing folder C:\Users\Public\Desktop Adds the file Чистилка.lnk"="9/9/2019 10:53 AM, 1701 bytes, A In the existing folder C:\Windows\Fonts Adds the file pns.ttf"="6/21/2017 12:51 PM, 130760 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Fonts] "Proxima Nova Semibold (TrueType)"="REG_SZ", "pns.ttf" [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Чистилка] "DisplayIcon"="REG_SZ", "C:\ProgramData\Чистилка\Чистилка.exe" "DisplayName"="REG_SZ", "Чистилка" "DisplayVersion"="REG_SZ", "2.21.249" "InstallDate"="REG_SZ", "20190909" "InstallLocation"="REG_SZ", "C:\ProgramData\Чистилка" "NoModify"="REG_DWORD", 1 "NoRepair"="REG_DWORD", 1 "Publisher"="REG_SZ", "Чистилка" "QuietUninstallString"="REG_SZ", "C:\ProgramData\Чистилка\Чистилка.exe /uninstall" "UninstallString"="REG_SZ", "C:\ProgramData\Чистилка\Чистилка.exe /uninstall" "URLInfoAbout"="REG_SZ", "http://chistilka.com" "URLUpdateInfo"="REG_SZ", "http://chistilka.com" [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Чистилка] "runmode"="REG_DWORD", 2 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Chistilka] "DisplayName"="REG_SZ", "Chistilka" "ErrorControl"="REG_DWORD", 1 "ImagePath"="REG_EXPAND_SZ, ""C:\ProgramData\Чистилка\Чистилка.exe" /service" "ObjectName"="REG_SZ", "LocalSystem" "Start"="REG_DWORD", 2 "Type"="REG_DWORD", 16 "WOW64"="REG_DWORD", 1 [HKEY_CURRENT_USER\Software\Microsoft\chst] "prt"="REG_SZ", "" "scsch_p"="REG_SZ", "86400" "scsch_st"="REG_SZ", "1568105606" "st"="REG_QWORD, .... "ticpap"="REG_SZ", "C:\Users\{username}\Desktop\bin-2.21.249.exe" "ticrg"="REG_SZ", "{956FB60A-5D26-48E0-A5A4-87DFF8F5DA2C}" "uid"="REG_SZ", "8fcf5f58-e9eb-49ba-8863-0c634e53a255-3e4ae244fe5c39ff1b81e082ea1d91817c2ca856" "v"="REG_SZ", "2.21.249" Malwarebytes log: Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 9/9/19 Scan Time: 11:03 AM Log File: bca3a4c0-d2e0-11e9-8bc0-00ffdcc6fdfc.json -Software Information- Version: Components Version: 1.0.613 Update Package Version: 1.0.12381 License: Premium -System Information- OS: Windows 7 Service Pack 1 CPU: x64 File System: NTFS User: {computername}\{username} -Scan Summary- Scan Type: Threat Scan Scan Initiated By: Manual Result: Completed Objects Scanned: 235950 Threats Detected: 9 Threats Quarantined: 9 Time Elapsed: 8 min, 28 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Enabled Heuristics: Enabled PUP: Detect PUM: Detect -Scan Details- Process: 1 PUP.Optional.Chistilka, C:\USERS\{username}\DESKTOP\BIN-2.21.249.EXE, Quarantined, [7272], [729302],1.0.12381 Module: 1 PUP.Optional.Chistilka, C:\USERS\{username}\DESKTOP\BIN-2.21.249.EXE, Quarantined, [7272], [729302],1.0.12381 Registry Key: 2 PUP.Optional.Chistilka, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\Чистилка, Quarantined, [7272], [729313],1.0.12381 PUP.Optional.Chistilka, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\Chistilka, Quarantined, [7272], [729313],1.0.12381 Registry Value: 0 (No malicious items detected) Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 0 (No malicious items detected) File: 4 PUP.Optional.Chistilka, C:\PROGRAMDATA\Чистилка\Чистилка.EXE, Quarantined, [7272], [729313],1.0.12381 PUP.Optional.Chistilka, C:\DOCUMENTS AND SETTINGS\PUBLIC\Desktop\Чистилка.lnk, Quarantined, [7272], [729313],1.0.12381 PUP.Optional.Chistilka, C:\USERS\PUBLIC\Desktop\Чистилка.lnk, Quarantined, [7272], [729313],1.0.12381 PUP.Optional.Chistilka, C:\USERS\{username}\DESKTOP\BIN-2.21.249.EXE, Quarantined, [7272], [729302],1.0.12381 Physical Sector: 0 (No malicious items detected) WMI: 0 (No malicious items detected) (end) As mentioned before the full version of Malwarebytes could have protected your computer against this threat.We use different ways of protecting your computer(s): Dynamically Blocks Malware Sites & Servers Malware Execution Prevention Save yourself the hassle and get protected.
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