Security Incidents mailing list archives
Re: CRv2 multiple scans from same source IP
From: corecode <corecode () corecode ath cx>
Date: Mon, 06 Aug 2001 10:09:12 +0000
At 12:39 AM 8/6/2001, John Davidson wrote:
My W2k IIS logs show 3 CRv2 scans from the same source IP within the same minute.
which worm is attacking? please don't mistake the names! there is:code red original, discovered around the 13th of July (CRv1): has a damaged PRNG
code red with patched PRNG, discovered aroung the 16th of July (CRv2)both can infect one system multiple times, but possibility to get double attacks is much more probable from CRv1 than CRv2
NOW: CodeRedII (this name is easily mistaken with CRv2, so i would suppose another name: i stared calling it ida_root since my first analysis on 5th aug, 7:34 GMT)
this worm alway only infects one host _once_. it checks for double infection.it could generate the same ip address again in it's PRNG but the chance this happening is near 0.
furthermore ida_root (or whatever you call it) concentrates on class A and class B networks 7/8 of the time...
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Current thread:
- CRv2 multiple scans from same source IP John Davidson (Aug 05)
- Re: CRv2 multiple scans from same source IP Luc Pardon (Aug 05)
- Re: CRv2 multiple scans from same source IP Chris Freeze (Aug 05)
- Re: CRv2 multiple scans from same source IP Chris Freeze (Aug 05)
- RE: CRv2 multiple scans from same source IP Gareth Hastings (Aug 06)
- Re: CRv2 multiple scans from same source IP Paul Gear (Aug 06)
- Re: CRv2 multiple scans from same source IP Valdis . Kletnieks (Aug 05)
- RE: CRv2 multiple scans from same source IP robh (Aug 05)
- Re: CRv2 multiple scans from same source IP corecode (Aug 06)
- Re: CRv2 multiple scans from same source IP Lee Smith (Aug 06)
- RE: CRv2 multiple scans from same source IP Andrew Cruse (Aug 06)
- Re: CRv2 multiple scans from same source IP Ryan Russell (Aug 06)
- Re: CRv2 multiple scans from same source IP Andy Berkheimer (Aug 06)
- Re: CRv2 multiple scans from same source IP corecode (Aug 07)
- Re: CRv2 multiple scans from same source IP Lee Smith (Aug 06)
- Re: CRv2 multiple scans from same source IP Bryan Andersen (Aug 06)
- Re: CRv2 multiple scans from same source IP Luc Pardon (Aug 05)
- <Possible follow-ups>
- RE: CRv2 multiple scans from same source IP Tim Hollebeek (Aug 06)
- RE: CRv2 multiple scans from same source IP corecode (Aug 06)