Repeated Port Scan

[compguruman () mail comcast net]

I've been getting port scans from the same IP address for 3 days.  It is 
not scanning continuously but will usually scan me every 2 hours for  a few 
hours.  When I do a whois on the address it doesn't give much information 
on who to contact about abuse.  I'm thinking that the computer scanning me 
has been compromised and is looking for other computers to infect.  The 
source port is random but the local port is not.  It scans to see if ports 
1075, 3128, 4588, 6588, and 8080 are open.  I ran retina against the 
machine and its running a default install of Apache without much anything 
configured.  The Sequence # of the packets are always 666666 and all have 
the SYN flag set.  Does anybody know of any worms or Trojans that scan for 
these ports and have these features?  Also, if whois doesn't give much 
information how can I find out who to contact about this?  I've attached 
some of the packets that I've captured, along with the whois 
information.  Any help is appreciated.

TIA

Attachment: Capture.txt
Description:

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