Infected file ran cmd how to find what it did ?

[iTree]

i downloaded a file and when i clicked it, it ran a command prompt that did a bunch of stuff then the cmd and file disappeared, my AV deleted the file and another file with the same virus name in another location but I'm not sure if everything is ok, i would like know what it ran in cmd any way i can do that without the file messing with more stuff ?
any help is much appreciated

 

[phil22]

Without knowing the name of the malware or virus it's impossible to say what it does, (or what it did in your case).

 

[iTree]

Without knowing the name of the malware or virus it's impossible to say what it does, (or what it did in your case).

it showed up on avira as
BDS/Fynloski.A.8606 [backdoor]