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Michael Russo
mmm mmm prog
Registered: Mar 2002
Location: Toronto, Canada
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What do you mean HTML virus? That's impossible... HTML is just a scripting language, its harmless... it would have to be something serverside like perl or php...
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Mar-25-2002 01:55
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Stilez
RealTalk & Srsbidniz

Registered: Dec 2001
Location: here & there
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Mar-25-2002 08:15
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LKD
Omni-peasant

Registered: Aug 2001
Location: Its June 18th, 2005, I'm at the Skybar
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Mar-25-2002 16:24
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Rostros
Carbon Sasquatch

Registered: Dec 2001
Location: United Kingdom
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Nimda - Admin
I remember this one
Nimda is Admin spelt backwards for all you dummies , it scans this
GET /scripts/root.exe?/c+dir
GET /MSADC/root.exe?/c+dir
GET /c/winnt/system32/cmd.exe?/c+dir
GET /d/winnt/system32/cmd.exe?/c+dir
GET /scripts/..%5c../winnt/system32/cmd.exe?/c+dir
GET /_vti_bin/..%5c../..%5c../..%5c../winnt/system32/cmd.exe?/c+dir
GET /_mem_bin/..%5c../..%5c../..%5c../winnt/system32/cmd.exe?/c+dir
GET /msadc/..%5c../..%5c../..%5c/..\xc1\x1c../..\xc1\x1c../..\xc1\x1c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc1\x1c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc0/../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc0\xaf../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc1\x9c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%35c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%35c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%5c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%2f../winnt/system32/cmd.exe?/c+dir
Note: The first four entries in these sample logs denote attempts to connect to the backdoor left by Code Red II, while the remaining log entries are examples of exploit attempts for the Directory Traversal vulnerability.
Payload
The email addresses targeted for receiving the worm are harvested from two sources
the .htm and .html files in the user's web cache folder
the contents of the user's email messages retrieved via the MAPI service
These files are passed through a simple pattern matcher which collects strings that look like email addresses. These addresses then receive a copy of the worm as a MIME-encoded email attachment. Nimda stores the time the last batch of emails were sent in the Windows registry, and every 10 days will repeat the process of harvesting addresses and sending the worm via email.
Likewise, the client machines begin scanning for vulnerable IIS servers. Nimda looks for backdoors left by previous IIS worms: Code Red II [IN-2001-09] and sadmind/IIS worm [CA-2001-11]. It also attempts to exploit various IIS Directory Traversal vulnerabilities (VU#111677 and CA-2001-12). The selection of potential target IP addresses follows these rough probabilities:
50% of the time, an address with the same first two octets will be chosen
25% of the time, an address with the same first octet will be chosen
25% of the time, a random address will be chosen
The infected client machine attempts to transfer a copy of the Nimda code via tftp (69/UDP) to any IIS server that it scans and finds to be vulnerable.
Once running on the server machine, the worm traverses each directory in the system (including all those accessible through file shares) and writes a MIME-encoded copy of itself to disk using file names with .eml or .nws extensions (e.g., readme.eml). When a directory containing web content (e.g., HTML or ASP files) is found, the following snippet of Javascript code is appended to every one of these web-related files:
This modification of web content allows further propagation of the worm to new clients through a web browser or through the browsing of a network file system.
In order to further expose the machine, the worm
enables the sharing of the c: drive as C$
creates a "Guest" account on Windows NT and 2000 systems
adds this account to the "Administrator" group.
Furthermore, the Nimda worm infects existing binaries on the system by creating Trojan horse copies of legitimate applications. These Trojan horse versions of the applications will first execute the Nimda code (further infecting the system and potentially propagating the worm), and then complete their intended function.
___________________
" You bet your ass we're all alike... we've been spoon-fed baby food at school when we hungered for steak... the bits of meat that you did let slip
through were pre-chewed and tasteless. We've been dominated by sadists, or ignored by the apathetic. The few that had something to teach found us will-
ing pupils, but those few are like drops of water in the desert."
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Mar-25-2002 16:57
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LKD
Omni-peasant

Registered: Aug 2001
Location: Its June 18th, 2005, I'm at the Skybar
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Mar-25-2002 17:02
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flystyler
Defected[JULES]Addict

Registered: Jun 2001
Location: Aylesbury, UK
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Re: Nimda - Admin
| quote: | Originally posted by DJ RozzeR
I remember this one
Nimda is Admin spelt backwards for all you dummies , it scans this
GET /scripts/root.exe?/c+dir
GET /MSADC/root.exe?/c+dir
GET /c/winnt/system32/cmd.exe?/c+dir
GET /d/winnt/system32/cmd.exe?/c+dir
GET /scripts/..%5c../winnt/system32/cmd.exe?/c+dir
GET /_vti_bin/..%5c../..%5c../..%5c../winnt/system32/cmd.exe?/c+dir
GET /_mem_bin/..%5c../..%5c../..%5c../winnt/system32/cmd.exe?/c+dir
GET /msadc/..%5c../..%5c../..%5c/..\xc1\x1c../..\xc1\x1c../..\xc1\x1c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc1\x1c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc0/../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc0\xaf../winnt/system32/cmd.exe?/c+dir
GET /scripts/..\xc1\x9c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%35c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%35c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%5c../winnt/system32/cmd.exe?/c+dir
GET /scripts/..%2f../winnt/system32/cmd.exe?/c+dir
Note: The first four entries in these sample logs denote attempts to connect to the backdoor left by Code Red II, while the remaining log entries are examples of exploit attempts for the Directory Traversal vulnerability.
Payload
The email addresses targeted for receiving the worm are harvested from two sources
the .htm and .html files in the user's web cache folder
the contents of the user's email messages retrieved via the MAPI service
These files are passed through a simple pattern matcher which collects strings that look like email addresses. These addresses then receive a copy of the worm as a MIME-encoded email attachment. Nimda stores the time the last batch of emails were sent in the Windows registry, and every 10 days will repeat the process of harvesting addresses and sending the worm via email.
Likewise, the client machines begin scanning for vulnerable IIS servers. Nimda looks for backdoors left by previous IIS worms: Code Red II [IN-2001-09] and sadmind/IIS worm [CA-2001-11]. It also attempts to exploit various IIS Directory Traversal vulnerabilities (VU#111677 and CA-2001-12). The selection of potential target IP addresses follows these rough probabilities:
50% of the time, an address with the same first two octets will be chosen
25% of the time, an address with the same first octet will be chosen
25% of the time, a random address will be chosen
The infected client machine attempts to transfer a copy of the Nimda code via tftp (69/UDP) to any IIS server that it scans and finds to be vulnerable.
Once running on the server machine, the worm traverses each directory in the system (including all those accessible through file shares) and writes a MIME-encoded copy of itself to disk using file names with .eml or .nws extensions (e.g., readme.eml). When a directory containing web content (e.g., HTML or ASP files) is found, the following snippet of Javascript code is appended to every one of these web-related files:
This modification of web content allows further propagation of the worm to new clients through a web browser or through the browsing of a network file system.
In order to further expose the machine, the worm
enables the sharing of the c: drive as C$
creates a "Guest" account on Windows NT and 2000 systems
adds this account to the "Administrator" group.
Furthermore, the Nimda worm infects existing binaries on the system by creating Trojan horse copies of legitimate applications. These Trojan horse versions of the applications will first execute the Nimda code (further infecting the system and potentially propagating the worm), and then complete their intended function. |
That all sounds very worrying. Oh and i was watchin The Net last night, with sandra bollcok, hehe, sorry bullock. And it was a crap film, but it is bloody scary to think that your whole life is acessible to anyone on the net if they have the right knowledge.
So it makes me thinkn wether i should become more anonamous on the net 
___________________

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Mar-25-2002 17:05
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AnotherWay83
The B00b Maintenance Guy™

Registered: Aug 2000
Location: land of d(-_-)b
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Mar-25-2002 21:40
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