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Combofix


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#1 Killiangrogs

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Posted 17 March 2014 - 02:11 PM

Attempting to download combofix but McAfree stops and delets as a trojan

Edit: Moved topic from Windows XP to the more appropriate forum.~ Animal

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#2 Condobloke

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Posted 17 March 2014 - 02:22 PM

G'day Killiangrogs, and Welcome to BC !!

 

No one should be using ComboFix unless specifically instructed to do so by a Malware Removal Expert who can interpret the logs. It is a powerful tool intended by its creator to be "used under the guidance and supervision of an expert. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again. When issues arise with new malware infections or other security tools conflicting with ComboFix, experts are aware of them and can advise users what should or should not be done while providing assistance. Those attempting to use ComboFix on their own do not have such information and are at risk when running the tool in an unsupervised environment. Please read the pinned topic ComboFix usage, Questions, Help? - Look here
(Credit : QuietMan7)

 

Tell us what problems you are having...do you believe you are infected....if so, why?.......What steps have you already taken.


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#3 Orange Blossom

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Posted 17 March 2014 - 02:53 PM

Hello Killiangrogs,

What is happening is known as a false positive. Aspects of Combofix can be used both for nefarious and good reasons, just as a surgeon's knife can be. McAfee and many other security products don't know what purpose it's going to be used for, it simply recognizes aspects of it being similar to aspects of malware; hence, it blocks or flags it.

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#4 quietman7

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Posted 17 March 2014 - 03:06 PM

Expanding on Orange Blossom's reply...certain embedded files that are part of legitimate programs or specialized fix tools such as Combofix may at times be detected by some anti-virus and anti-malware scanners as suspicious, a Risk Tool, Hacking Tool, Potentially Unwanted Program, a possible threat or even Malware (virus/trojan) when that is not the case. This occurs for a variety of reasons to include the tool's compiler, the files it uses, whether files are compressed or packed, what behavior (routines, scripts, etc) it performs, any registry strings it may contain and the type of security engine that was used during the scan. Other legitimate files which may be obfuscated, encrypted or password protected in order to conceal itself so they do not allow access for scanning but often trigger alerts by anti-virus software.

When flagged by an anti-virus or security scanner, it's because the program includes features, behavior or files that appear suspicious or which can potentially be used for malicious purposes. Compressed and packed files in particular are often flagged as suspicious by security software because they have difficulty reading what is inside them. These detections do not necessarily mean the file is malicious or a bad program. It means it has the potential for being misused by others or that it was simply detected as suspicious or a threat due to the security program's heuristic analysis engine which provides the ability to detect possible new variants of malware. Anti-virus scanners cannot distinguish between "good" and "malicious" use of such programs, therefore they may alert you or even automatically remove them. In these cases the detection is a "false positive" and can be ignored. Either have your anti-virus ignore the detection or temporarily disable it until you download the tool.

The problem is really with the anti-virus vendors who keep targeting these embedded files and NOT with ComboFix. We can inform the developer but he has encountered this issue many times before and in most cases there isn't much he can do about it. Once the detection is reported to the anti-virus vendor, they are usually quick to fix it by releasing an updated definition database.
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#5 Killiangrogs

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Posted 17 March 2014 - 03:11 PM

Hello everyone following

 

when I select a link in the browser onlinewebfind.com runs and points me to an online ad or Updaters pro.com attempts to rum but is blocked by my MaCafree service. When I attempt to go to creditkarma.com a phishing page pops up wanting ssn, DOB user id and password.

 

This happens on explorer and firefox

 

I have run adwcleaner, Malwarebytes anti-malware, McAfree and webroot. I have cleaned my registry to no avail.

 

Ideas



#6 quietman7

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Posted 17 March 2014 - 03:37 PM

If you need individual assistance with malware infection, you can start a new topic in the Am I infected? What do I do? forum or follow the instructions provided in the Malware Removal and Log Section Preparation Guide starting at Step 6.
  • If you cannot complete a step, then skip it and continue with the next.
  • In Step 6 there are instructions for downloading and running DDS which will create two logs. (Note: Windows 8.1 Users will not be able run DDS and create a log)
When you have done that, post your logs in the Virus, Trojan, Spyware, and Malware Removal Logs forum, NOT here, for assistance by the Malware Response Team.
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