need help - jenxcus-d infection

Viruses and worms
1

hallo. have jenxcus-d infection.

symptoms: when plug USB stick, avast start screaming about blocking unwanted action. hovewer the USB stick is infected (beja.vbs file created in USB root, files hidden, lnk files created instead…)

what is strange. Avast is not able to detect this worm in any other situation then USB stick inserted.

Action taken: I tryed several step-by-step manual, without success. I tryed offline scan by rescue disks of this AV SW : Avast, AVG, ESET, dr web.(with offline i mean boot from rescue disk). All offline scans processed correctly, with no jenxcus-d infection found. But still, after starting windows, inserting usb stick, avast start scream and stick is beeing infected…?

I attach logs according instruction. cannot do the msshield test, as avast is still screaming when USB stick is inserted…:-/

if anybody would help, I would be very glad…

Pavel

2

Three programmes to run to ensure that it does die

Download MCShield to your desktop and install
It will initially run a scan and show the result as a toaster by the system clock
Then in the control centre select scanner and tick unhide items on flash drives

https://dl.dropbox.com/u/73555776/mcshield%20unhide.JPG

Plug in the drive and McShield will start a scan

Then get the log which will be located under the logs tab on the main page

And post that

THEN

CAUTION : This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:

CreateRestorePoint: HKU\S-1-5-21-885203361-3510120749-3890488511-1001\...\Run: [beja] => wscript.exe //B "C:\Users\doma\AppData\Local\Temp\beja.vbs" <===== ATTENTION Startup: C:\Users\doma\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\beja.vbs [2015-07-16] () HKLM\SOFTWARE\Policies\Microsoft\Internet Explorer: Restriction <======= ATTENTION C:\Users\doma\AppData\Local\Temp\beja.vbs Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: Reg Delete "HKLM\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg" /F Reg: Reg Add "HKLM\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg" /F RemoveProxy: EmptyTemp: CMD: bitsadmin /reset /allusers

Save this as fixlist.txt, in the same location as FRST.exe

https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG

Run FRST and press Fix
On completion a log will be generated please post that

FINALLY

Download Anti VBS/VBE to your desktop

[]download the appropriate version (32 bit or 64 bit) and double click the file to run it.
[]After a couple of seconds (might also take a whole minute if the machine is heavily infected and/or slow) a report will open in Notepad.
[*]Post that report

Be aware this is a very new programme and as such is not recognised by any Antivirus or Windows, it is safe so allow it to run

3

hallo.thanks

logs attached

note: USB stick inserted only during msshield scan and work. Becasue AVAST still screaming even after msshield…

4

msshield = M C S hield :wink: and you need to copy and paste MCShield log or we cant read it

5

For essexboy … Copy paste from Android

MCShield ::Anti-Malware Tool:: http://www.mcshield.net/

v 3.0.5.28 / DB: 2015.9.13.1 / Windows 8.1 <<<

    1. 2015 22:12:07 > Drive E: - scan started (CD_ROM ~15266 MB, NTFS flash drive )…

E:\autorun.inf > Suspicious > Renamed. (MD5: b1d499ef0907ac5e427bc4181ba8b0c9)

E:\autorun.lnk.vir - Malware > Deleted. (15.09.29. 22.12 autorun.lnk.vir.213848; MD5: d41d8cd98f00b204e9800998ecf8427e)

E:\beja.vbs - Malware > Deleted. (15.09.29. 22.12 beja.vbs.662147; MD5: 471d9e7528e16feb829406538f1a6cec)

=> Malicious files : 2/2 deleted.
=> Suspicious files : 1/1 renamed.

::::: Scan duration: 5sec ::::::::::::::::::

Running fix at 29. 9. 2015 22:14:47

Found: C:\Users\doma\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\beja.vbs - deleted.

Found: c:\users\doma\appdata\local\temp\beja.vbs - deleted.

Found: HKU\doma\Software\Microsoft\Windows\CurrentVersion\Run\beja - deleted.

Fix finished at 29. 9. 2015 22:14:50

Anti-VBS/VBE, build 11
http://www.mcshield.net/download/tools/Anti-VBSVBE/

6

It appear that you copied the entire web page to create the fixlist… Not quite right…

Could you run a fresh FRST scan please and let me know if the alerts have now ceased

Cheers Pondus :slight_smile:

7

good morning

MCShield of course. that was the tool I use. Sorry for typing error:-) But the log was that which was requested I hope…

attached fresh log from FRST64.exe

thanks for You help!

Pavel

8

OK the malware has gone so lets just remove the last few elements

Download the attached fixlist.txt to your desktop

https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG

Run FRST and press Fix
On completion a log will be generated please post that

9

hallo

log attached

note: i did not put any USB to computer. Let me know when I should “try” it:)

10

OK try the USB now

11

ok

tryed 2 USBs

seems no action of worm detected. wow

thank YoU!!!

12

Subject to no further problems :slight_smile:

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean :thumbsup:

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Remove tools

Download and run Delfix
Select the options as shown

https://dl.dropboxusercontent.com/u/73555776/delfix.JPG

: Keep Java Updated :

WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article

I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)

If you do need to keep Java then download JavaRa
Run the programme and select Remove Java Runtime. Uninstall all versions of Java present
Once done then run it again and select Update Java runtime > Download and install Latest version

https://dl.dropboxusercontent.com/u/73555776/javara.JPG

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

CryptoPrevent install this programme to lock down and prevent crypto ransome ware

https://dl.dropboxusercontent.com/u/73555776/CryptoPrevent.JPG

Malwarebytes

Update and run weekly to keep your system clean

Unchecky

Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme :wink:

It is critical to have both a firewall and anti virus to protect your system and to keep them updated.

To learn more about how to protect yourself while on the internet read this little guide Best security practices Keep safe :wave:

13

hallo again

everything seems still OK.

I read best practices carefully and will try to follow them

thank You once more!

Pavel

14

:slight_smile: