DoS attack: ACK Scan

Discussion in 'Network Help' started by sodapop554, Jul 26, 2012.


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  1. sodapop554 Elite Member

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    I check my router's logs every few hours or so lately since every hour got to be quite annoying. As of just now checking before bed like usual I noticed the following log.

    Thursday, Jul 26,2012 04:30:57
    [DoS attack: ACK Scan] attack packets in last 20 sec from ip [184.172.165.210]



    Before making this thread I did a quick Google search & from there it says that it's a Bangladesh IP. Also the 1st search result is about something called Flash Chat Design Studio. I've only gotten this log once so far however what exactly does this all mean?
    xXBludnmunyXx likes this.
  2. xXBludnmunyXx Tech Member

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    Sodapop, props on being conscious of network!

    I'll do my own little research and get back to you.
  3. sodapop554 Elite Member

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    Thanks & yeah I just wish I was as conscious when I 1st got this router. Originally I just set it & forgot about it completely, I only changed the default pass & started checking the logs regularly about a couple months ago.
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  5. Arctos You may call me Arctos.

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    Here's is the result for 184.172.165.210

    #
    # Query terms are ambiguous. The query is assumed to be:
    # "n ! NET-184-172-0-0-1"
    #
    # Use "?" to get help.
    #

    #
    # The following results may also be obtained via:
    # http://whois.arin.net/rest/nets;handle=NET-184-172-0-0-1?showDetails=true&showARIN=false&ext=netref2
    #

    NetRange: 184.172.0.0 - 184.173.255.255
    CIDR: 184.172.0.0/15
    OriginAS: AS36420, AS30315, AS13749, AS21844
    NetName: NETBLK-THEPLANET-BLK-17
    NetHandle: NET-184-172-0-0-1
    Parent: NET-184-0-0-0-0
    NetType: Direct Allocation
    RegDate: 2010-10-06
    Updated: 2012-02-24
    Ref: http://whois.arin.net/rest/net/NET-184-172-0-0-1


    OrgName: ThePlanet.com Internet Services, Inc.
    OrgId: TPCM
    Address: 315 Capitol

    Address: Suite 205
    City: Houston
    StateProv: TX
    PostalCode: 77002
    Country: US
    RegDate: 1999-08-31
    Updated: 2010-10-13
    Ref: http://whois.arin.net/rest/org/TPCM

    ReferralServer: rwhois://rwhois.theplanet.com:4321

    OrgNOCHandle: THEPL-ARIN
    OrgNOCName: The Planet NOC
    OrgNOCPhone: +1-281-714-3555
    OrgNOCEmail: noc@theplanet.com
    OrgNOCRef: http://whois.arin.net/rest/poc/THEPL-ARIN

    OrgAbuseHandle: ABUSE271-ARIN
    OrgAbuseName: The Planet Abuse
    OrgAbusePhone: +1-281-714-3560
    OrgAbuseEmail: abuse@theplanet.com
    OrgAbuseRef: http://whois.arin.net/rest/poc/ABUSE271-ARIN

    OrgTechHandle: TECHN33-ARIN
    OrgTechName: Technical Support
    OrgTechPhone: +1-214-782-7800
    OrgTechEmail: admins@theplanet.com
    OrgTechRef: http://whois.arin.net/rest/poc/TECHN33-ARIN

    RNOCHandle: THEPL-ARIN
    RNOCName: The Planet NOC
    RNOCPhone: +1-281-714-3555
    RNOCEmail: noc@theplanet.com
    RNOCRef: http://whois.arin.net/rest/poc/THEPL-ARIN

    RAbuseHandle: ABUSE271-ARIN
    RAbuseName: The Planet Abuse
    RAbusePhone: +1-281-714-3560
    RAbuseEmail: abuse@theplanet.com
    RAbuseRef: http://whois.arin.net/rest/poc/ABUSE271-ARIN

    RTechHandle: TECHN33-ARIN
    RTechName: Technical Support
    RTechPhone: +1-214-782-7800
    RTechEmail: admins@theplanet.com
    RTechRef: http://whois.arin.net/rest/poc/TECHN33-ARIN

    #
    # ARIN WHOIS data and services are subject to the Terms of Use
    # available at: https://www.arin.net/whois_tou.html
    #
  6. xXBludnmunyXx Tech Member

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    EDIT: Arctos post contains all info you'll need.

    If it happens again, you can report to these guys.
  7. sodapop554 Elite Member

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    So in short they offer web hosting & the attack was initiated by one of their customers?
  8. sodapop554 Elite Member

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    Do I have to wait for it to happen again to report the company?
  9. xXBludnmunyXx Tech Member

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    My bad on the late reply. If you have the evidence, you don't need to wait to report. I just said that in case it was a false report.
  10. Hengis PCHF Manager

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    It's likely to be a chat app on a website that you were using and as usual, I would advise you to worry less about these types of things.

    ...and this is why...
    One instance of a bad packet does not constitute a DOS.
  11. sodapop554 Elite Member

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    By evidence do you mean if I had saved my routers log?
  12. sodapop554 Elite Member

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    Well the only types of chat I use are on RuneScape with the in game chat, however my dad does play an online Poker Game on his own laptop that's through AOL or something I think. Although I'm not sure if they are in any way affiliated with ThePlanet.com. In short though you're saying that unless I get more then 1 logged attack from the same IP then it was likely a mistake?
  13. Crush Administrator & Security Team Leader

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    Exactly. If it were truly a DoS attack you'd see hundreds
  14. sodapop554 Elite Member

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    Alright thanks, this can be closed now.

DoS attack: ACK Scan

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