Evil Bit In Ipv4 Header - There's a security flag in IPv4 Header
ankushbhargava
Dec 13 2005, 04:03 PM
I found this amusing. believe it or not, there is an evil bit in the IPv4 header,
QUOTE
The bit field is laid out as follows:
0 +-+ |E| +-+
Currently-assigned values are defined as follows:
0x0 If the bit is set to 0, the packet has no evil intent. Hosts, network elements, etc., SHOULD assume that the packet is harmless, and SHOULD NOT take any defensive measures. (We note that this part of the spec is already implemented by many common desktop operating systems.)
0x1 If the bit is set to 1, the packet has evil intent. Secure systems SHOULD try to defend themselves against such packets. Insecure systems MAY chose to crash, be penetrated, etc.
I would like to thank you for posting the link from where you copied this material...You saved me from some search work . Please make sure that you have to add QUOTES to all that stuff...which you copy from diff. sources...even if it is your own website you have to quote it. Quotes added, warning issued.
Before I go into this topic I have to say, stop making up these crazy names. I know I just getting
into the security side of things but still as long as there are computer problems and ways to sucker
someone into downloading the stuff, the crazy names will still live on. QUOTE Lieware
ADVERTISEMENT In 2007, there was a lot of "rogue anti-virus software," which is sometimes also
referred to as "fake anti-virus software." But these terms are confusing because there's too
much negation going on. Fake anti-virus software is not anti-virus software at all. So what ....
Well I have to same I am bit surprise on this security flaw especially what it can do; in which all
a user has to do is open a malicious Excel document and it allows the hackers to execute remote code
on to your system. As far as how wide spread this vulnerability is, it hits every excel software
from Excel 2000 to Excel 2003 SP2, and it also includes the Mac Version of Excel 2004 as well. OF
course with the disappointment of Office 2007 by some people will still be running the 2003 versions
on their computers. Right now the attacks are minimal and the question for t ....
A very good article titled "Security Common Sense" in gnucitizen.org Below is the link to that
article http://www.gnucitizen.org/blog/security-common-sense Website Link
http://www.gnucitizen.org "We basically train a bunch of monkeys to click the yes button for
every security warning." Don't you think many of us fall under the category? because most of
the time we do not see what the dialog says, but press Yes, which might not treat you well
sometimes... A good read.....
Well I saw this article and after reading it all just to find the top 10 security problems I thought
I share them and give my thoughts about them. I know I know its horrible but what can I say, its me
/laugh.gif" style="vertical-align:middle" emoid=":lol:" border="0" alt="laugh.gif" />. 1.) Data
Breaches For the most part I am not surprise especially the big stories of 2007 which include the
TJ Max breach of 45 million credit/debit cards; I believe that has been the biggest hack job ever in
terms of stolen cards and id theft (somewhat). Oh lets not forget the al....
Security Guidelines for Internet Users 1. Install an anti-virus software, you can free ones like
AVG Free . Ensure that it's regularly updated - this is of the utmost importance. 2.
Anti-virus software is not enough, the security can be tightened using a firewall software which
will help you prevent unauthorized incoming and outgoing communications from your computer while
connected to the Internet. 3. Disconnect your computer from the Internet when not in use. The
longer you are connected to the Internet, the more opportunity you give for persons to gain un....
QUOTE PHP Security If you are using PHP on your website we ask that you please read the
following carefully. We have noticed a significant number of PHP websites are being compromised
due to vulnerable PHP code. Spammers are scanning millions of websites on the Internet looking for
PHP scripts that can be exploited to send spam. When they find a script that has a loophole they
send thousands of email messages through the script, often taking down the website or severely
impacting website performance. Generally these loopholes exploit code using paramet....
Even though the fiasco with the .ANI exploit is still going strong microsoft released it's month
updates this time they found 4 more critical breaches in it's systems (XP), most people should
have gotten the update pop up screen yesterday. So here is the info on these critical flaws.
http://go.microsoft.com/fwlink/?LinkId=84687 http://go.microsoft.com/fwlink/?LinkId=85130
http://go.microsoft.com/fwlink/?LinkID=85163 http://go.microsoft.com/fwlink/?LinkID=85164
http://go.microsoft.com/fwlink/?LinkId=80251 I don't know how reliable vista will be af....
With the flood of news coming about the .ani exploits it seems the tech world is recieve more news
about new hacks, viruses and other bad stuff these days. Today Kaspersky Lab created a virus that
is able to affect the Ipod, however, it is only affecting Ipod's that have linux installed and
not the standard OS that comes with Ipod. The virus goes by the name of Podloso, although they say
it doesn't show a current threat this virus does show the possiblity to install malware into
devices such as the Ipod. They also mention that the virus does not copy it self....
I was able to browse around this and found it interesting since this vunerability is found in 4
Microsoft Operating Sytems, Windows 2000, Windows XP, Windows Vista, Windows 2003 Server. From the
article Microsoft stated that their is a hole in the .ani files, which happen to be related tothe
mouse cursor, when the mouse icon changes depending on what you do. They only mention that with
this flaw it always hackers to break into someone computer and do their thing. But in another
article relating to this attack it was mention that in order for this to happen a user has ....
A pair days ago I read this new on Slashdot: cPanel Exploit Used to Circulate IE Exploit
QUOTE "In a dangerous combination of unpatched exploits, hackers have used a previously
undiscovered security hole in cPanel to hack the servers of a hosting company and use hundreds of
hijacked sites to infect Internet Explorer users with malware using the unpatched VML exploit.
cPanel, whose hosting automation software is used by many large hosting companies, has issued a fix.
It's a local exploit, meaning the attacker must control a cPanel account on the target hosti....
We all know the difference between a limited user and an administrator user under Win2k/XP - you
can't/can install major software, perform system maintainence, and other stuff. But using a
limited user on a day-to-day basis also provides you with decent protection from a bunch of threats:
if the malware is running under your limited-rights user, it can only do as much as you can. For
instance, a limited rights user can't edit the HKLM hive of the Registry, so any malware running
under the same user won't be able to touch that area. It's extremely simple t....
a security threat to be concerned with is the increasing prevalence of viruses containing advanced
rootkits to hide their actions or data on the computer. even from the anti-stuff tools. a
rootkit was originally a name for tools that hackers/crackers would use to maintain root on
unix/linux machines. root is the uber user with all the permissions on a linux box. on windows
these tools can be used to hide data on the harddrive and in the registry by manipulating the way
the data is stored. THe windows api(the thing windows uses to communicate to the hardware) read....
Hi everyone!!!!!!! This is the last one!! /tongue.gif"
style="vertical-align:middle" emoid=":P" border="0" alt="tongue.gif" /> Ok guys, I heard
somewhere that if we protect some page with password, it is steel not safe at all, if we dont hace a
secure connction (http s ://...) How is it true? is there a posibility that some one can see a page,
even if it is protected by password? (the scrit in tha page don't allow IDs that didn't past
from the login page) is that script sufficent? thanks a lot to every one /biggrin.....
Talking about manual removals of viruses I thought I better be a pioneer of this by sharing my
knowledge about a virus. I would like to tell the effects and manual removing technique of a very
common and irritating virus, that is HTML Redoff. First I would like to discuss its effects, HTML
Redoff virus infects kernel32.dll file which is installed in your “WINDOWS\SYSTEM” directory in
case you have Windows 98 and “WINDOWS\SYSTEM32” directory in case you have Windows XP and all
the .htm, .html, folder.htt and desktop.ini files on your PC thus it slows down your....
On the end of February was discovered that the first trojan (Leap) to target Apple Computer's
Mac OS X, it was published on a new worm that exploits an 8-month-old vulnerability in the operating
system, its know by the name of Inqtana, the worm use Bluetooth to propagate, once it infects a
computer it searches for other Bluetooth-enabled devices and sends itself to those it finds, this
may not be very alarm, but the source code could be easily modified by a future attacker to do
damage like Symantec said, Symantec also says it believes the two pests were developed on....
Microsoft Ships First Vista Security Patches http://www.eweek.com/article2/0,1895,1911406,00.asp
QUOTE Microsoft Corp. has shipped the first critical security update for Windows Vista, the
next version of its flagship operating system. Over the weekend, the company released patches for
beta testers running the Windows Vista December CTP (Community Technology Preview) and Windows Vista
Beta 1, and warned that the new operating system was vulnerable to a remote code execution flaw in
the Graphics Rendering Engine. A Microsoft spokesperson told eWEEK that the Vi....
(excessively long intro, skip to 'suggestions' for immediate tips) Its almost 2 am and I
just finished an email detailing some ideas I had to keep systems a little more secure than usual (
tips that can be applied to most any Windows users system ). I dont feel like re-editing it so it
doesnt sound I copied and pasted it from my email, cause I did, and its late. Please note THIS IS
NOT SPAM. I did write all of this, just in an email before I copied and pasted it here. These are
entirely valid and ( I hope ) helpful tips for most anyone. Of course I hate just yap....
I would just like to have comments on any holes that I might have. I have been using this
configuration for a while, but want to hear what others think. Here's my security setup: OS:
XP Pro SP2 AV: AVG Antivirus, updates/scans automatically Firewall:
Sygate Personal Firewall AntiSpy: Spybot Search and Destroy, manual update/scan,
teatimer prevents unauthorized registry changes.
Spyware Blaster, manual update, automatic scan. Backup: Norton Ghost (sys....
Hello everyone. Ive looked over all of your questions. I think some of them are pointless. Although
they were questions so here are your anwsers. #1) Antihack was posted on a free site because its
free why pay #2) No it is not a virus os something were you got the IDEA is beyond me All I
am trying to do is tell everyone about antihack. I noticed people talk about computer issues here so
I said hey I bet those guys could use antihack. The reason why I like it is that I get everything
antivirus, antispyware, and firewall PLUS a hole crap load of security holes are....
Hello everyone. This is FuRy your local 1UP resident. I have great news. Antihack is now online and
ready to serve your every need. They specialize in security and if your computer is running slow and
this happens often do to viruses and spyware. You should check out they can make it so that you
dont get viruses and spyware. They can even stop hacking issues. They walk you through everything
and even test your security before and after to show you the difference. Anyway just telling yah
have fun and later Removed link, post only made for advertising, and topic closed.....
hi all, In this topic I'm gonna start explain about windows security scanners , leave your
comments and hope to enjoy /smile.gif' border='0' style='vertical-align:middle' alt='smile.gif' />
:: Nsauditor Network Security Auditor Nauditor is a network security scanner that allows to audit
and monitor network computers for possible vulnerabilities , to see all open ports and owner program
names, including the process loaded modules, kernel objects, memory details, remote address and
state of connections, dns name, country where from, service associated with connect....
hi friends, We all copy various data by using ctrl+c/Copy for pasting elsewhere. This copied data
is stored on clipboard and is accessible over the net by a combination of Javascripts and ASP.
Just try this: 1) Copy any text by ctrl+c 2) Click the Link:
http://www.friendlycanadian.com/applications/clipboard.htm 3) You will see the text you copied on
the Screen which was accessed by this web page. Moral: Do not keep sensitive data (like
passwords, creditcard numbers, PIN etc.) in the clipboard while surfing the web. It is extremely
easy to extract the text sto....
Hi, I've posted some security tools and links in my last posts,I preferd to post new topic and
send he extra here : Network Sniffers # DSniff http://www.monkey.org/~dugsong/dsniff/ #
Ethereal - full network protocol sniffer/analyzer http://www.ethereal.com/ # IPTraf - curses based
IP LAN monitor http://iptraf.seul.org/ # TcpDump - network monitor and data acquisition
http://www.tcpdump.org/ # KISMET - 802.11 wireless network detector, sniffer and intrusion
detection system http://www.kismetwireless.net/ Online Tools # AutomatedScanning.com - commer....
hi all, here's a collection of top linux security books and you can obtain each one by searching
in amazon.com . If you know more plz add it here . "Hacking Linux Exposed" by Brian Hatch, James B.
Lee, George Kurtz ISBN #0072225645, McGraw-Hill (2nd edition) "Maximum Linux Security: A
Hacker's Guide to Protecting Your Linux Server and Workstation" by Anonymous and John Ray ISBN
#0672321343, Sams Covers not only audit and protection methods but also investigates and explains
the attacks and how they work. "Network Intrusion Detection: An Analyst's Handbo....
hey ,this article discusses the major default configuration and design changes incorporated in IIS
6.0 to make it a more secure platform for hosting critical web applications. By: Contact : Link :
http://securityfocus.com/infocus/1765 Personal info removed -- again ....
List of security sites, I'll try to update the list as soon as I can . with compilations of
recent security threats, Global Incident Analysis Center (GIAC), GIAC training, and Reading Room
http://www.sans.org/ http://www.infragard.net/ http://www.cert.org/security-improvement/
CERT Security Improvement Modules,including general information on firewalls and intrusion
detectors. excellent set of papers on firewalls, viruses, e-commerce, etc. http://www.icsa.net/
http://www.gocsi.com/ (Source of the annual "CSI/FBI Computer Crime and Security Su....
Hey, I just saw "Top 75 Security Tools" page and it has lots of security tools wif description ,
hope to enjoy /smile.gif' border='0' style='vertical-align:middle' alt='smile.gif' />
http://www.insecure.org/tools.html ....
Many people don't care about email account security and just go for a Hotmail account because
it's automatically MSN compatible or a Gmail account because it has lots of space. But out of
those of you who choose your email based on safetey and security, which client do you recommend?
There are tons out there. Personally, I use GMX.net, it's a German service with extremely high
security. They have a password meter to check your password for how easy or hard it might be to
guess, encouraging you to use upper and lower case letters along with numbers. They veri....
I'm not going to post the same issue / solution on both forums. If you have a Mozilla based
browser it would be in your best interest to read this story. Browsers affected by this exploit
are: Mozilla 1.7.x Mozilla Firefox 0.x Mozilla Firefox 1.x Mozilla Thunderbird 0.x Mozilla
Thunderbird 1.x Security Issue in Mozilla based browsers Thank You Nils....
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