Full Disclosure mailing list archives
Re: Sasser skips 10.x.x.x Why?
From: Joe Stewart <jstewart () lurhq com>
Date: Mon, 3 May 2004 17:24:30 -0400
On Monday 03 May 2004 3:44 pm, Eric Chien wrote:
Actually, it is all variants (.A - .D). And more specifically, it iterates through all the host IP addresses looking for an address that does not match: 127.0.0.1 10. 172.16 - 172.31 (inclusive) 192.168. 169.254 Then, using this address it creates a random address (sometimes changing all octets, sometimes just the last three, and sometimes just the last two).
That's not exactly how it works. It loops through every address returned by gethostbyname for the local hostname. It will prefer a non-RFC1918 address, but if none are found it will use whatever address it finds. If no address is returned it will use 127.0.0.1. So, yes, it does scan and infect private network ranges. -Joe -- Joe Stewart, GCIH Senior Security Researcher LURHQ http://www.lurhq.com/ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Sasser skips 10.x.x.x Why?, (continued)
- Sasser skips 10.x.x.x Why? Shawn Cox (May 03)
- Re: Sasser skips 10.x.x.x Why? Thomas Springer (May 03)
- Unpacking Sasser youssef ALAOUI (May 03)
- RE: Sasser skips 10.x.x.x Why? Warnich Rust (May 03)
- Re: Sasser skips 10.x.x.x Why? Matt Wagenknecht (May 03)
- Re: Sasser skips 10.x.x.x Why? Shawn Cox (May 03)
- Re: Sasser skips 10.x.x.x Why? Eric Chien (May 03)
- Re: Sasser skips 10.x.x.x Why? Frank Knobbe (May 03)
- Re: Sasser skips 10.x.x.x Why? Eric Chien (May 03)
- Sasser skips 10.x.x.x Why? Shawn Cox (May 03)
- Re: Sasser skips 10.x.x.x Why? Rodrigo Barbosa (May 03)
- Re: Sasser skips 10.x.x.x Why? Joe Stewart (May 03)
- Re: Re: New LSASS-based worm finally here (Sasser) Javier Fernandez-Sanguino (May 04)
- Re: Re: New LSASS-based worm finally here (Sasser) insecure (May 04)
- Re: New LSASS-based worm finally here (Sasser) Gadi Evron (May 04)
- Re: New LSASS-based worm finally here (Sasser) Javier Fernandez-Sanguino (May 05)