What dat are you running the dat and only added 1 day ago. AVG name is relevantknowledge.dropper (Ok may not be that 1 as different to 1 Peter posted)
Was this the 1 you are talking about.
MWB is useful they do however concentrate on only certain types of malware
...from one of the lead developers of MalwareBytes (Bruce Harrison) :This was for another detection but same rule applies
As far as why MBAMis very good at dealing with this infection, that is simple.MBAM is designed to be very good at dealing with malware that the AVs seem tobe having problems with. I do not spend my time making MBAM detect millions of infections that any decent AV already detects as MBAM is DESIGNED to work alongside antivirus software, not replace it. A huge chunk of the research that goes into MBAM revolves around what we see making it into HJT threads as the vast majority of these threads involve antivirus software that was in some waybypassed.
Lets settle this now and avoid any further misinformation. MBAM is now a very good backup to any antivirus software and will only get better in the future.MBAM will NEVER add antivirus abilities to its core app and is always advised to be used WITH antivirus software. We actually get this question a lot in the forums and I assure you that we always say :
You can also run the current stinger programs they especially the Fake alert stinger is updated daily and worth a look.
As Tony says, Malwarebytes often finds stuff that any antivirus, not just McAfee, miss, but on the other hand the reverse can be true in many instances. Hence the need for supplementary tools such as MBAM etc.
I have several such tools mentioned here: https://community.mcafee.com/docs/DOC-2168
According to this link: http://www.bleepingcomputer.com/uninstall/1054/RelevantKnowledge.html McAfee's Labs probably could have benefitted from having a sample of it submitted, so they could have added it to the protection database.
How to submit a sample is outlined here: http://www.mcafee.com/us/mcafee-labs/resources/how-to-submit-sample.aspx or use the GetSusp tool mentioned on the previous tools link.