Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Help me with suspicios file


  • Please log in to reply
7 replies to this topic

#1 CPKC

CPKC

  • Members
  • 4 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 06 March 2015 - 12:44 PM

Hi,

 

I have noticed a strange file reappearing in C: partition (system drive) randomly. It has no extension and it's "hidden", and I have no idea how to detect what is making it appear again after I delete it. I've opened it with notepad and all I see are some chinnese characters. Tried to translate it, and some wierd text is inside which scared the **** out of me!

ComboFix, ESET smart security and Malwarebytes aren't able to detect anything suspicious.

 

I've put it in .zip and attached to this topic.

 

Can you help me, please?

Attached Files


Edited by hamluis, 06 March 2015 - 01:38 PM.
Moved from Win 7 to Am I Infected - Hamluis.


BC AdBot (Login to Remove)

 


m

#2 Aura

Aura

    Bleepin' Special Ops


  • Malware Response Team
  • 19,196 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Quebec, Canada
  • Local time:03:37 AM

Posted 06 March 2015 - 12:51 PM

It looks like a brand new file, the first time it was submitted on VirusTotal was 20 hours ago. It also cameback clean from that analysis and the one I just did. Also, I suggest you to not run ComboFix on your own unless you've been trained to use it, or you are under the supervision of a trained malware removal helper. You can read quietman's ComboFix FAQ thread here:

http://www.bleepingcomputer.com/forums/t/273628/combofix-usage-questions-help-look-here/

Back to the file, I guess someone like White Hat Mike or Didier will jump in the thread to analyse it. When was the first time you noticed that file being created on your system?

unite_blue.png
Security Administrator | Sysnative Windows Update Senior Analyst | Malware Hunter | @SecurityAura
My timezone UTC-05:00 (East. Coast). If I didn't reply to you within 48 hours, please send me a PM.


#3 CPKC

CPKC
  • Topic Starter

  • Members
  • 4 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 06 March 2015 - 01:05 PM

Yeah, that was me submitting the file to VirusTotal yesterday :)

I am very familiar with ComboFix. Been using it for ages and have cleaned lots of PCs.

 

I have noticed it not so long ago, maybe a month or so. I deleted it first time I saw it, and yesterday I saw it again. I'm not sure when it reappered before that, but after deleting it yesterday - it took less than a day for it to reappear again! 

 

I have combofix scan logs from yesterday (right after I noticed for the first time it reappeared (log includes some deletions)), and today's (with no deletions at all).



#4 CPKC

CPKC
  • Topic Starter

  • Members
  • 4 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 06 March 2015 - 01:09 PM

ComboFix3 - yesterday's
ComboFix - today's

Edited by Queen-Evie, 06 March 2015 - 01:13 PM.
attached Combofix logs removed as they are not allowed in this forum.


#5 Aura

Aura

    Bleepin' Special Ops


  • Malware Response Team
  • 19,196 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Quebec, Canada
  • Local time:03:37 AM

Posted 06 March 2015 - 01:14 PM

Did you install any Windows Updates lately?

unite_blue.png
Security Administrator | Sysnative Windows Update Senior Analyst | Malware Hunter | @SecurityAura
My timezone UTC-05:00 (East. Coast). If I didn't reply to you within 48 hours, please send me a PM.


#6 Queen-Evie

Queen-Evie

    Official Bleepin' G.R.I.T.S. (and proud of it)


  • Staff Emeritus
  • 16,485 posts
  • OFFLINE
  •  
  • Gender:Female
  • Location:My own little corner of the universe (somewhere in Alabama). It's OK, they know me here
  • Local time:03:37 AM

Posted 06 March 2015 - 01:14 PM

Start a new topic in Malware Removal Logs.

Please follow the instructions in ==>This Guide<== starting at Step 6. If you cannot complete a step, skip it and continue.


Once the proper logs are created, then make a NEW TOPIC and post it ==>HERE<== Please include a description of your computer issues, what you have done to resolve them, and a link to this topic.


If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

You can also post the Combofix logs in the new topic you will create in Malware Removal Logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.



If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

#7 CPKC

CPKC
  • Topic Starter

  • Members
  • 4 posts
  • OFFLINE
  •  
  • Local time:10:37 AM

Posted 06 March 2015 - 01:16 PM

No, updates are turned off since the first run of Windows after it's installation.



#8 Aura

Aura

    Bleepin' Special Ops


  • Malware Response Team
  • 19,196 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Quebec, Canada
  • Local time:03:37 AM

Posted 06 March 2015 - 01:17 PM

Alright well I suggest you for starters to enable your Windows Updates, these are crucial for the security and well being of your system. And I advice you to follow the instructions posted by Queen-Evie if you think that your system is infected and need to get it checked by a professional :)

unite_blue.png
Security Administrator | Sysnative Windows Update Senior Analyst | Malware Hunter | @SecurityAura
My timezone UTC-05:00 (East. Coast). If I didn't reply to you within 48 hours, please send me a PM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users