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My Norton just detected a Trojan in DelFix from this site


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#1 JanDT

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Posted 21 September 2017 - 07:24 AM

I was doing some clean up on PC this morning - administrative, junk files, etc. I needed to uninstall some pesky ESET leftovers from Feb that caused a conflict because ESET data was included in another vendors scan. It triggered some file conflicts. I really didn't want to use the ESET uninstaller. Safe Mode, resets. Ominous! I came to this site to download DelFix. Just as I hit run, Norton popped up with File Insight and had already canceled it.

 

                 delfix_1.0106{1}.exe

                 Trojan.Gen.8!cloud

                 High Risk

 

False positive?  I didn't want to thank my lucky stars and just blow it off. Who wants to clean up with a Trojan. Gives me chills just thinking about it.

    Don't use DelFix until it's confirmed.

Attached Files


Edited by hamluis, 21 September 2017 - 07:26 AM.
Moved from MRL to AV/AM Software - Hamluis.


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#2 quietman7

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Posted 21 September 2017 - 03:24 PM

The detection is a false positive by the anti-virus. Bleeping Computer's hosted programs for download are trustworthy, safe and malware-free.

Certain embedded files that are part of legitimate programs and specialized fix tools (like DelFix), 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, packed, or obfuscated to protect code, 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 encrypted or password protected in order to conceal itself so they do not allow access for scanning 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. Heuristics uses non-specific detection methods to find new or unknown malware which allows the anti-virus to detect and stop if before doing any harm to your system. The disadvantage to using heuristics is that it is not as reliable as signature-based detection (blacklisting) and can potentially increase the chances that a non-malicious program is flagged as suspicious or infected. 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.

Most of the well known specialized tools we use against malware are written by experts/Security Colleagues at various security forums like Bleeping Computer, TechSupport, GeeksToGo, Emsisoft and other similar sites so they can be trusted...this includes any program hosted by BC for download. Unfortunately, many of these tools are falsely detected by various anti-virus programs from time to time for the reasons noted above. This in turn sometimes results in an inaccurate site rating/warning by browsers of potentially dangerous software when that is not the case.

The problem is really with the anti-virus vendors who keep targeting these embedded files and NOT with the tools themselves. We can inform the developers but they have encountered this issue many times before and in most cases there isn't much they 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.

Either have your anti-virus ignore the detection or temporarily disable it until you download and run the tool.
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