C99Shell How To Stop

Nov 5, 2009

How to stops the scripts like c99 shell from installing into the server?

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C99Shell Stop Shell Hacking Totally?

Oct 19, 2007

Is there a way to stop them totally? i.e. even though they are successfully uploaded but I do not want the source to be available to them etc.?

I mean, is there a way to hide or not allow them to execute any shell?

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C99Shell :: How To Detect Or Disable The Functionality Of C99Shell

Jul 13, 2008

Recently my site was defaced, (i own a dedicated server), my server was not touched, but one of the applications I used on the site was exploited to gain access to it.

I have noticed 4 or 5 c99 shells in different locations on my ftp. The site is back online, but it's definitely possible that they have one of these hidden somewhere and that they'll just do it again. I am using cent os 5

How can I easily search for these on my box? Can I disable their functionality? is there setting I can use in htaccess or something to make my website safer? I visited one of the scripts, and it said SAFEMODE OFF, how can I at least enable safemode?

I don't know much of anything about linux, but I am running cpanel and WHM. I have a guy who manages my box but he is hard to get a hold of sometimes, and I'd like to take care of this ASAP!

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C99Shell Folders?

Jul 30, 2009

I found these folders in the root

/usr/bin/c99

/usr/include/boost/numeric/interval/detail/c99_rounding_control.hpp

/usr/include/boost/numeric/interval/detail/c99sub_rounding_control.hpp

what are these ? is it normal folders ? or somebody hacked our server?

what shall I do?

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Trojan C99Shell

Jul 1, 2009

I just installed zen cart on my webhosting and after few days later i saw some file written like core1405.php and when i open to view the file it is actually trojan c99shell.

I have deleted all of the core file. Now how can i prevent it from happen again? Cause it is too much work to clean up the hosting server.

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Mod_security & C99shell Anyone Help Please ?

Jun 5, 2007

I installed modsecurity from Addone module in Cpanel

When I try to apply phpshell woork good without a mistakes and I can do anything despite of the presence of protection modsecurity and disable_functions in php.ini.

Is there a particular settings add to the httpd.conf to prevent application phpshell or prevent upload it to the site?

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C99Shell Hackers Killing Me!

Jun 25, 2007

guys im tired off fighting those hackers everyday! i have about 20 websites,and everyday i have one of them hacked! i restore a backup then another one hacked!

thats unbelivable!!!

those bastards upload there shell scripts to websites via bugs or whatever from php files!!

is there anyway to stop these commands?

can .htaccess helps? how?

i talked to my webhosting companies for my websites! ....

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C99shell Disable PHP Scripts?

Sep 3, 2007

the biggest security issue i have with my clients is php c99 shell and similar php files, somehow these files uploaded on the website and from here they start attacking the websites.
i have seen also that once you upload the c99 php file you are able to see the accounts information ( such as a user name ) on the same server

so is there any way to disable this kind of php file or at least disable some function within the file!

i have been thinking to install and run a antivirus on the server , but i see sometimes they upload the encrypted version of the file , so the antirus can't catch the file as a torjan!

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C99Shell :: Detect And Disable C99 Shell?

Aug 15, 2008

how i can detect and disable C99 shell and another shell script exp:r57 ....

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C99Shell :: Attack Rules For Mod_security

Oct 3, 2007

i want to prevent c99shell scripts from running.

I found this rule to detect URI's for the c99 shell.

#new kit
SecFilterSelective REQUEST_URI "/c99shell.txt"
SecFilterSelective REQUEST_URI "/c99.txt?"
My problem is that the hackers are being more stealthy and calling the
script some random name like .../myphpstuff.php. So the URI no longer helps detect it.

How could I detect "c99shell" in the actual file that apache servers? This assumes that the hacker was successfully in installing it.

my box

Apache 1.3.37
WHM 11.2.0 cPanel 11.11.0-R16983
FEDORA 5 i686 - WHM X v3.1.0

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C99Shell :: Protect My Server For Shell Attacks Via C99 And H57?

Sep 1, 2008

I have few scripts, but hackers again upload at some way c99, and hack some SMF forums at server. Server like server they cannot hack, but user account they can. So please tell me what you advice?

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DNS Stop Resolving In VPS

May 1, 2009

my DNS stop resolving, once a day i need to restart the service in cpanel/whm , what can be done to prevent that ?

its a fresh vps only cpanel is there and 2 domains with no pages just a simple under costruction index page . in CSF i have a Your Score: 106/112 in security , it firewalled and hardened

right now is using 299 of ram out of 512 burstable to 768

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How To Stop Spammers?

Jun 30, 2008

I was wondering if anyone has any methods to stop spammers? Currently i am keeping watch on the mail queue and making sure nothing unsual. I have in WHM configuration setup to not allow more 200 mail messages per account per hour but for some reason it will hit thousands. WHMCS does seem to suspend them automatically or maybe its because of WHM BUT only when its too late.

Any thoughts or suggestions?

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How To Stop Spammers ...?

Jun 2, 2009

Have a persistent spammer who kept emailing my clients, even non existent domain accounts and getting the bounced emails to be send to a particular yahoo address. I tried to block in all ways but can't seem to stop him. His spams are from all over the world. Any suggestions?

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How To Stop Gunzip -c

Jul 1, 2009

how to stop gunzip -c?

By mistake instead of using gunzip file name on my friend's vps, I had used gunzip -c filename

and its taking hell a lot of time to unzip it, I have no clue on how to stop this and I am scared if I close ssh client, it might be still adding load to the server ..

I am unzipping an 4.5mb file, which on un-compression must be around 14.5mb ..

for the past 10 mins its still unzipping and not sure how long it will go on.. unless I stop it..

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Stop Hacking

Feb 6, 2009

a site i manage for a client is being hacked every couple of days, its not the actual site but the hosts server thats getting attacked, all sites on that server, well actually all thier servers.

They have made no attempt to sort this problem, i report it they look at the site and say "site loads fine for us" which it does.

All index files are having a base64 encode line written after the <body> tag, this adds hundreds of spam links which are hidden with display:none; they also add .html to application types in htaccess for php to run in these files too.

Problem is, i am moving the site to another host but cannot change the nameservers to the new host's untill the client returns from a holiday, so i must keep the site up on the insecure host for now.

I am removing the spam code almost daily, is there anyway i can stop this attack happening for the time being, the host does nothing.

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How Stop Spam

Apr 17, 2009

I have a server that is sending spam, but I can not know who sent because the server not has installed suphp.

There is another option to see who sends spam?

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Stop Hotlinking

Jul 19, 2009

Is there a way to stop hotlinking? I have a client who has a blog. They have post pics of tattoos. Now there are at least 50 tattoo forums, blogs and other sites hotling to the pics. Now his bandwidth usage has skyrocketed. So enable hotlink protection in his cPanel. Just did a redirect to my main hosting site with a nice please stop hotlink image. Now I see all this in my logs. So I then made a 150 x 9000 clear BG gf with the text at the top please stop hotlinking.

My questions is there any way to stop it. If not should I just make a 1x1 clear gif to redirect to? Also is there a way to not have this traffic show in my log files?

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I Want To Stop Emailing Myself

Dec 25, 2008

I want to stop emailing myself

I have received quite a few emails from senders claiming to be the recipients [in this case one of my email accounts]. I did not send these emails. This is happening with almost every email account I have setup on one of my domains.

I know this is probably an easy fix-- I am simply unsure of what it is.

I noted that someone else recently posted a similar question-- with only one response. I wanted to see if another post my garner another response.

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Stop Bots

Nov 14, 2008

I would like to ask about the best system or software code used to stop bots and offline down loaders from entering website.

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How To Stop Iptables

May 4, 2008

to stop iptables cause when any user make refresh he is take banned from server

i need to stop iptables or how to make rules for it

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Awstat Stop

Jun 14, 2008

I already enabled awstat in whm features manager.

And it was working till 3 jan 2008!

But statistic doesn't update now!

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Too Much Traffic, How To Stop It?

May 4, 2007

i've a vps with iptables, but i've too much traffic (RX), there are too many packets received from random ports on both upt and tcp. Today in just 14 hours i've 2.8 gib of traffic, without any connection for web, email, etc (i've stopped all the services). How can i stop this? it's going to burn all my monthly traffic

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Stop Supporting Php.ini

Jun 15, 2007

to stop supporting php.ini files in clients account because they can turn off safe mode or any fucntions and options and they can hack server! how i can stop supporting this files

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What's The Best Way To Stop Spam

Oct 19, 2007

For my site email address I get like 500 emails a day.

Is spam assassin really the only method?

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How To Stop Spammers

Apr 30, 2007

I have a massive spam problem on my server, which I cannot seem to find a cure for. Here is an example of the headers from an example email (from WHM) that is stuck in the mail queue:

Quote:

1HiU0X-0006Y3-O6-Hmailnull 47 12<>1177932329 0-ident mailnull-received_protocol local-body_linecount 78-allow_unqualified_recipient-allow_unqualified_sender-frozen 1177932333-localerrorXX1vrroark@freemail.ru144P Received: from mailnull by host.zaggs.com with local (Exim 4.63)id 1HiU0X-0006Y3-O6for vrroark@freemail.ru; Mon, 30 Apr 2007 12:25:06 +0100045 X-Failed-Recipients: download@host.zaggs.com029 Auto-Submitted: auto-replied058F From: Mail Delivery System <Mailer-Daemon@host.zaggs.com>024T To: vrroark@freemail.ru059 Subject: Mail delivery failed: returning message to sender047I Message-Id: <E1HiU0X-0006Y3-O6@host.zaggs.com>038 Date: Mon, 30 Apr 2007 12:25:06 +01001HiU0X-0006Y3-O6-DThis message was created automatically by mail delivery software.A message that you sent could not be delivered to one or more of itsrecipients. This is a permanent error. The following address(es) failed: download@host.zaggs.com (generated from abraham@keysupplier.com) retry timeout exceeded------ This is a copy of the message, including all the headers. ------Return-path: <vrroark@freemail.ru>Received: from [220.157.245.77] (port=3648 helo=localhost.localdomain)by host.zaggs.com with smtp (Exim 4.63)(envelope-from <vrroark@freemail.ru>)id 1HiU0X-0006Xu-7rfor abraham@keysupplier.com; Mon, 30 Apr 2007 12:25:06 +0100Message-ID: <10fb01c78b19$683b6042$8bc8505a@freemail.ru>From: Noticeable <vrroark@freemail.ru>To: abraham@keysupplier.comSubject: I am 79 years young!Date: Mon, 30 Apr 2007 14:19:48 +0300MIME-Version: 1.0Content-Type: multipart/alternative; boundary="----=_NextPart_000_0000_9E7D5C31.01A57A34"X-Priority: 3X-MSMail-Priority: NormalX-Mailer: Microsoft Outlook Express V6.00.2900.2180X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180This is a multi-part message in MIME format.------=_NextPart_000_0000_9E7D5C31.01A57A34Content-Type: text/plain; charset="iso-8859-1"Content-Transfer-Encoding: 7bit A few words about HGH LifeI have been taking HGH Life for five weeks and there is a noticeable improvementin me overall. Waking up without muscular pain is the most obvious! WhenI run out, I shall be ordering as much as my pension will allow. I am inEngland and am 79 years young!Order HGH Life online ------=_NextPart_000_0000_9E7D5C31.01A57A34Content-Type: text/html; charset="iso-8859-1"Content-Transfer-Encoding: quoted-printable<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><META http-equiv=3DContent-Type content=3D"text/html; =charset=3Diso-8859-1"><META content=3D"MSHTML 6.00.2900.2912" name=3D"GENERATOR"></HEAD><BODY text=3D#000000 bgColor=3D#ffffff><font size=3D"3" face=3D"Times New Roman"><p align=3D"center"><font =face=3D"Arial" color=3D"#009900" size=3D"5"><strong>A few =words about HGH Life™</strong></font></p><p align=3D"center"><font face=3D"Arial">I have been taking HGH =Life™ <strong>for five weeks </strong>and there is a noticeable =improvement in me overall. Waking up without muscular pain is the most =obvious! When I run out, I shall be ordering as much as my pension will =allow. I am in England and am <strong>79 years =young</strong>!"</font></p><p align=3D"center"><a href=3D"http://worldwdefull.com"><strong><font =face=3D"Arial" color=3D"#ff6600" size=3D"4">Order HGH Life™ =online</font></strong></a></p></font></BODY></HTML>------=_NextPart_000_0000_9E7D5C31.01A57A34--

I can confirm that the person who is doing this IS NOT using the 'nobody' user because I am keeping a spam_log for that.

How else is a user able to use our server for spam? Please help as I would like to get this sorted ASAP.

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How Stop Spam From Nobody

Aug 13, 2007

i have server and on the server 150 website and more

someone upload mailer and send spam to online banking

i want know where this mailer on the server coz my server on nobody

i stoped sending from nobody from Tweak Settings till know what the account sent that and all message in Mail Queue Manager

what the solution?

any script to know that or method?

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How To Stop Using WHM/Cpanel

Apr 17, 2007

I have my own server which I use for my own websites.

I use the following features of WHM -

Creating accounts
Deleting accounts
Creating "packages" for my accounts
Restarting services
...and possibly one or two other items once or twice a year.

I use the following features in Cpanel -

Checking statistics
Adding e-mail accounts
...and possibly one or two other items once or twice a year.

I'd like to break the (small) WHM/Cpanel habit I have and do all of the above via the command line.

Is this a big task?

Where should I start?

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SYN Flood .. No Way To Stop It ?

Oct 30, 2007

One of the servers have 1 account on, but seems like its extremely attacked. I cannot SSH and many packet loss. so I asked softlayer and they access it and said its a SYN Flood as from the /var/log/messages (I cannot see it as the server is not accessable) they put the main public ip under Cisco guard but still didn't help. when I asked for any solution, unfortunaly I were told there isn't and have to wait the attackers to stop as it comes from MANY addresses that iptables even won't help.

Isn't there any solution (software-hardware) to stop that ?

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Email Hijacking How Can We Stop It?

Oct 8, 2007

This is something that has been playing on my mind for a while now and this may be the place to create a plan.

How many of you are recieving emails advertising pills, viagra etc.

And how many are recieving them from domains totally unrelated to the above, sometimes from even your own address??

Has anyone got any thoughts or ideas about how we can put a stop to this?

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How To Stop Apache From Doing Url Decoding

Apr 20, 2009

there is a customer who transferred their site over to our servers and has run into some kind of encoding issue.

They have file on their website named:

EXCL%204810_00%20BeefSkewers.jpg

You can see that the "%20" characters are actually part of the file name on the server.

So the problem is that when they try to call the image in a URL:

[url]

It gives a 404 not found error.

We use apache 2.2.x on our servers, and my admins are stuck on how to fix this.

(Besides renaming the files. The problem is that this issue appears to also effect other text in their database that uses various symbols, such as the ", ', and the degree (for temperature) sign...)

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