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jackraymund

Win32/TrojanDownloader.Delf.BTT

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Hello,

i got a problem with virus called Win32/TrojanDownloader.Delf.BTT. This virus removed my antyvirus and did some damages on server.

Tried to scan with ESET and microsoft safety scanner.

Could u help me with it?

2020-01-14 08:57:27;Skaner przy uruchamianiu;plik;Pamięć operacyjna » svchost.exe(784);odmiana zagrożenia Win32/TrojanDownloader.Delf.BTT koń trojański;wyleczony (po następnym uruchomieniu) - zawierał zainfekowane pliki;;;B815C519FC024547A19FBA7184B9921F1739AEBB;

 

Bootlog is in attachment(just change zip to 7z extension)

 

Regards,

Michał

Downloads.zip

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You have a rootkit there. Either boot from a clean medium (e.g. ESET SysRescue) and run a full disk scan, or do the following:

- start Windows in safe mode
- move C:\Windows\System32\Ms96FB23EEApp.dll to another folder, e.g. to c:\eset
- start Windows in normal mode
- run a full disk scan.

 

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I can't turn off this server right now to run full scan on SysRescue.

I would preffer to do second way but:

I dont have this file in C:\System32(at normal mode). Or this file will appear in safe mode?

Tried to show file systems in explorer and tried by ps script PS C:\Windows\System32> ls | findstr Ms96

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As I wrote, it's a rootkit so you and other apps / AVs won't normally see it. You should see it in safe mode.

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So, I moved file to other folder, when I check it at explorer(at normal mode) eset removed it.

Godzina;Skaner;Typ obiektu;Obiekt;Wykrycie;Czynność;Użytkownik;Informacje;Skrót;Pierwsze wystąpienie
2020-01-14 13:43:57;Ochrona systemu plików w czasie rzeczywistym;plik;D:\eset\Ms96FB23EEApp.dll;odmiana zagrożenia Win32/Packed.VMProtect.ABD koń trojański;wyleczony przez usunięcie;xxx;Zdarzenie wystąpiło podczas próby uzyskania dostępu do pliku przez aplikację: C:\Windows\explorer.exe (5A49D7390EE87519B9D69D3E4AA66CA066CC8255).;B0E1752744684C8E97CD3B72D5F21DFC0E15DA28;2020-01-02 10:50:28

 

Scanning is in progress....

 

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Scanning dont detect anything. After reboot everything works and eset dont detect anything. Thanks :)

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