as jay said sahagent is a spyware
it is a part of coolwebshredder gang of bs

icyfox is a trojan (a backdoor that runs arbitary codes downlaoded from http)

search secunia advisory for details of icyfox

the both othere may be some thing that is bundled with them
tds-3 also flags some thing based on heuristics i think
it flagged a autocad file for me some time ago when i trialled it
and i ripped the exe apart but i dont find nothing that is suspicious
in it

you can pm me with a place to grab them if you have them saved somewhere i will try to give it a look dont upload them here
i cant download and loading bs apps may be against forum rules and a security risk as well