The people below appear to send friend requests at random (don't know how they get profiles), and say a friend has a "offer", and sends them to a link not on Steam at all.
DO NOT CLICK THE LINK, IT IS MORE THAN LIKELY A SCAM OR VIRUS.This is what Kondor sends, the others may send it:
http://steamcommunity.com/profiles/76561197993496638 - Bandit 01
http://steamcommunity.com/profiles/76561197964096897 - Kondor
http://steamcommunity.com/profiles/76561198002525366 - [unassigned]
There appear to be multiple duplicates of the exact profile names, which can only mean 1 thing:
These are mass bots attempting to scam others.
If you have randomly got a FR from ANY of them (I got one from all 3), remove and report them -immediately.-
They even have -rep phisher, scammer, and other things in their profile comments which haven't been removed, probably since they're bots. Most either have 1 game, or none.
Beware. Also, Steamreps:
http://steamrep.com/search?q=76561197993496638 - Bandit 01 (no scammer/rep status)
http://steamrep.com/search?q=76561197964096897 - Kondor (appears to be broken? could be me)
http://steamrep.com/search?q=76561198002525366 - [unassigned] (also broken, could be me)
EDIT: blotted out the link to prevent others from being harmed, steam me if you want the real deal