Archive | November, 2010

TDL AKA Alureon Rootkit Now Infecting 64-Bit Windows 7 Platform

Keep on Guard!


As we’ve come to expect, the malware guys are always at the leading edge of technological development. Now there are rootkits infecting 64-Bit versions of Windows, which have been thought of as fairly safe by most parties.

The rootkit in questions is a fairly well known variant (TDL/Alureon) and has been around for several years, but according to Prevx it’s been hitting on x64 installs of Windows 7 since August this year.

It’s usually an oldskool method to circumvent the Windows security measures, the MBR (Master Boot Record) – haven’t seen anyway malware using that for quite some time.

A notorious rootkit that for years has ravaged 32-bit versions of Windows has begun claiming 64-bit versions of the Microsoft operating system as well.

The ability of TDL, aka Alureon, to infect 64-bit versions of Windows 7 is something of a coup for its creators, because Microsoft endowed the OS with enhanced security safeguards that were intended to block such attacks. The rootkit crossed into the 64-bit realm sometime in August, according to security firm Prevx.

According to research published on Monday by GFI Software, the latest TDL4 installation penetrates 64-bit versions of Windows by bypassing the OS’s kernel mode code signing policy, which is designed to allow drivers to be installed only when they have been digitally signed by a trusted source. The rootkit achieves this feat by attaching itself to the master boot record in a hard drive’s bowels and changing the machine’s boot options.

Microsoft has pumped some pretty advanced protection mechanisms into the latest member of the Windows family, but still you just know it’s only a matter of time before the bad guys find some way to get around it.

This is an advanced piece of malware though as there are multiple layers of protection in Windows 7 and TDL4 bypasses them all, it even blocks access to debuggers and is undetectable by most AV software.

Whichever way you look at it, that’s some neat coding.


“The boot option is changed in memory from the code executed by infected MBR,” GFI Technical Fellow Chandra Prakash wrote. “The boot option configures value of a config setting named ‘LoadIntegrityCheckPolicy’ that determines the level of validation on boot programs. The rootkit changes this config setting value to a low level of validation that effectively allows loading of an unsigned malicious rootkit dl file.”

According to researchers at Prevx, TDL is the most advanced rootkit ever seen in the wild. It is used as a backdoor to install and update keyloggers and other types of malware on infected machines. Once installed it is undetectable by most antimalware programs. In keeping with TDL’s high degree of sophistication, the rootkit uses low-level instructions to disable debuggers, making it hard for white hat hackers to do reconnaissance.

One of the advanced protections Microsoft added to 64-bit versions of Windows was kernel mode code signing policy. Microsoft also added a feature known as PatchGuard, which blocks kernel mode drivers from altering sensitive parts of the Windows kernel. TDL manages to circumvent this protection as well, by altering a machine’s MBR so that it can intercept Windows startup routines.

Prevx came out with this research, you can read more about their findings here:

x64 TDL3 rootkit – follow up

There is also an in-depth technical analysis from Microsoft researcher Joe Johnson check here [PDF].

Source: The Register

Posted in: Malware, Windows Hacking

Topic: Malware, Windows Hacking


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Katana v2 (y0jimb0) – Portable Multi-Boot Security Suite

Outsmart Malicious Hackers


Katana is a portable multi-boot security suite which brings together many of today’s best security distributions and portable applications to run off a single Flash Drive. It includes distributions which focus on Pen-Testing, Auditing, Forensics, System Recovery, Network Analysis, and Malware Removal. Katana also comes with over 100 portable Windows applications; such as Wireshark, Metasploit, NMAP, Cain & Able, and many more.

New in V2

This version has a bunch of new stuff all around. One major addition to the project is Forge. This tool facilitates a simple point-and-click installation for adding even more distributions to Katana Bootable. This new version also adds the Computer Aided Investigative Environment (CAINE) for a live forensics environment and Kon-Boot for bypassing password. Much effort was placed on the installation of additional applications to the Katana Tool Kit. These new applications include Metasploit, NMAP, Cain & Able, John the Ripper, Cygwin, and more.


Bootable

A full list of the tools available is here.

You can download Katana v2 here:

Torrent – katana-v2.0.torrent
Direct – katana-v2.0.rar

Or read more here.

Posted in: Forensics, Hacking Tools, Linux Hacking, Networking Hacking

Topic: Forensics, Hacking Tools, Linux Hacking, Networking Hacking


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PGP Users Locked Out With Latest OS X Update

Outsmart Malicious Hackers


For the past day or so I’ve been seeing endless people tweeting about how the latest Mac OS X update b0rks your Mac if you are using PGP full disc encryption. It’s a pretty nasty bug, but thankfully it can be recovered from fairly easily.

If you are just looking for a quick solution, you can:

a) Not apply the update (as recommended by PGP)
b) Decypt your volumes, apply the update, then re-encrypt

Users of PGP’s Whole Disk Encryption for Macs got a nasty surprise when they upgraded to the latest OS X update once they discovered their systems were no longer able to reboot.

It seems that Apple and the Symantec-owned PGP suffered a near-fatal failure to communicate that 10.6.5 ships with a new EFI booter that was incompatible with the encryption software’s boot guard. As a result, the update rendered Macs using WDE as little more than expensive paperweights.

“PGP you DO HAVE A FREAKING DEVELOPERS LICENCE FOR APPLE RIGHT???” one outraged user vented here. “YOU CANNOT TEST SYSTEM RELEASES IN ADVANCE???”

It’s caused a massive backlash from the user-base with people hurling insults left, right and center. For the non-tech savvy user it’s pretty worrying when their system can’t even boot up and in most cases they probably have absolutely no idea what to do.

It seems like a lack of communication between PGP devs and Apple with regards to the new boot loader.


Test versions of the update have been available to developers for a while now, but it’s not clear if they included the new EFI booter. If not, the fault could lie with Apple. The world will probably never know.

Fortunately, a fix was provided Thursday morning that’s relatively painless. It involves booting off the PGP recovery CD and then logging in to OS X. An automatic self-repair process that’s part of the Mac bootup sequence will straighten out things from there. A variation on that theme is to put the bricked machine in target mode and boot from another Mac running PGP.

WDE users who have yet to install the update may safely do so by decrypting their systems before running the update, PGP said.

A fix was provided yesterday morning by PGP, the details are here:

Mac PGP WDE customers should not apply the recent Mac OS X 10.6.5 update

Source: The Register

Posted in: Apple, Cryptography

Topic: Apple, Cryptography


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ddosim v0.2 – Application Layer DDOS Simulator

Outsmart Malicious Hackers


DDOSIM simulates several zombie hosts (having random IP addresses) which create full TCP connections to the target server. After completing the connection, DDOSIM starts the conversation with the listening application (e.g. HTTP server). Can be used only in a laboratory environment to test the capacity of the target server to handle application specific DDOS attacks.

Features

  • HTTP DDoS with valid requests
  • HTTP DDoS with invalid requests (similar to a DC++ attack)
  • SMTP DDoS
  • TCP connection flood on random port

Some more information and documentation is available here:

Application Layer DDoS Simulator

You can download ddosim v0.2 here:

ddosim-0.2.tar.gz

Or read more here.

Posted in: Hacking Tools, Networking Hacking

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Hotmail Always-On Encryption Breaks Microsoft’s Own Apps

Outsmart Malicious Hackers


Oh look, Microsoft is late to the party again? They are finally launching full-session SSL encryption to Hotmail a mere 2 years after Google did the same thing for Gmail.

It looks like the release of FireSheep really has had an impact on web-application vendors due to the amount of mainstream media coverage it got and the sheer number of downloads.

At least they are doing something and I hope more vendors follow and give users an option to force full-session HTTPS connections for all web properties.

For the first time in its 13-year history, Microsoft’s Hotmail comes with the ability to protect email sessions with secure sockets layer encryption from start to finish.

It’s the same always-on encryption Google Mail has offered for more than two years. And it comes with some pretty extreme limitations – namely the inability to protect email that’s downloaded using Microsoft apps including Outlook Hotmail Connector (required to use Outlook with Hotmail) and Windows Live Mail. But to hear Microsoft describe the new feature, you’d think it was a cure for the common cold.

“As you saw, with the recent additions of several security features to Hotmail, including Single-Use codes and new account recovery options, building towards the most secure webmail experience is very importance to us,” a spokeswoman, who asked that her name not be published, wrote in an email. “We will continue to incorporate leading-edge security features to better protect our customers. With today’s addition of full-session SSL encryption to Hotmail, we are delivering even more secure Hotmail sessions.”

The funny thing is, now they have pushed this out…but only for the web. If you are using software to access your Hotmail account (Outlook or Windows Live Mail) it doesn’t work..I wonder if anyone has tried it with Thunderbird yet? Or any other 3rd party apps.

Gmail works flawlessly with TLS/SSL for all apps I’ve tried, I’m not a Hotmail user so I can’t confirm or deny the above. It does give some modicum of security if the users in question only access their Hotmail via the web interface – but if they are using software..they are still vulnerable.


Microsoft’s online services have long played second fiddle to those of Google, and judging from Tuesday’s announcement, security is no exception. Not only is Gmail’s HTTPS encryption turned on by default, it also works flawlessly with a variety of email apps such as Thunderbird, Eudora, and even Microsoft’s Outlook. We asked Microsoft to explain why its own SSL doesn’t work with its own apps, and whether it might work with other email clients, but all we got was the above-quoted marketing fluff.

That’s unfortunate, because unsecured email has been the elephant in the room for more than a decade, making Hotmail users who check their email from public Wi-Fi vulnerable to snoops. For most Reg readers this is old news. But for readers of mainstream publications, it only sank in two weeks ago, with the advent of Firesheep, a Firefox plugin that makes stealing authentication cookies from Facebook, Twitter and, yes, Hotmail, a snap.

Enter Microsoft with a watered-down solution that’s certainly better than nothing. But given the fanfare with which it was announced, one wonders if it will give Hotmail users a false sense of security. And that’s not much of a selling point, now is it?

The bad thing is, if it gives users a false sense of security – as in most cases..that is worse than no security at all. And honestly does the average joe user know what SSL or TLS is? Or that they should use https:// when connecting to sites that require authentication?

Really? I don’t think they do, and nor will they care until some kiddy fires up FireSheep in the local Starbucks and steals all their accounts.

What will they do then? Most likely find this site and e-mail me offering me money to ‘hack’ their account back.

Source: The Register

Posted in: Countermeasures, Cryptography, Networking Hacking

Topic: Countermeasures, Cryptography, Networking Hacking


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XSSer v1.0 – Cross Site Scripter Framework

Keep on Guard!


XSSer is an open source penetration testing tool that automates the process of detecting and exploiting XSS injections against different applications.

It contains several options to try to bypass certain filters, and various special techniques of code injection.

New Features

  • Added “final remote injections” option
  • Cross Flash Attack!
  • Cross Frame Scripting
  • Data Control Protocol Injections
  • Base64 (rfc2397) PoC
  • OnMouseMove PoC
  • Browser launcher
  • New options menu
  • Pre-check system
  • Crawler spidering clones
  • More advanced statistics system
  • “Mana” ouput results

You can download XSSer v1.0 here:

xsser-1.0.tar.gz

Or read more here.

Posted in: Exploits/Vulnerabilities, Hacking Tools, Web Hacking

Topic: Exploits/Vulnerabilities, Hacking Tools, Web Hacking


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