Wtf Is Idp.alexa.51??

Hi guys. I installed an extension for chrome today to block certain websites and a few minutes later Avast asked me about some behavioural issue and said it suspected malware. It gave me the option to fix automatically so I chose that option. ( im running windows 7 btw) . ANyway..a few minutes later it came up with a warning that it had just blocked a threat (idp.alexa.51) from within my C:\Users\owner\AppData\Local\Temp\....\vds.exe. I tried looking for that folder but couldnt locate it. Since then avast give me the same popup every half hour or so. All the google searching I did about it has really told me nothing about it. Ive run malwarebytes and IOBit Malware fighter and they find it and say theyve removed it then half hour later avast tells me its back. Is this thing a real threat or a false positive? If its nasty how in heck do I get rid of it? Ive removed the chrome extension I installed prior to the problem ( presuming this is what caused it in the first place as it was the only thing Id changed) but it didnt seem to make a difference. If it is malware Ill go through the whole removal thing you have on here. (Done it plenty of times so Know my way around it all ) Just want some advice if it is bad or not?