Archive | November, 2009

Jailbroken iPhone Users Get Rickrolled

Outsmart Malicious Hackers


The ‘big’ news this week was the first self-replicating worm hit the iPhone, it only seemed to be spreading in Australia though and only worked under a specific set of circumstances.

It only effects iPhone users that have jailbroken their phone and have the SSH software installed with a default password of alpine.

Thankfully it’s not particularly malicious unless you are allergic to Rick Astley.

iPhone owners in Australia awoke this weekend to find their devices targeted by self-replicating attacks that display an image of 1980s heart throb Rick Astley that’s not easily removed. The attacks, which researchers say are the world’s first iPhone worm in the wild, target jailbroken iPhones that have SSH software installed and keep Apple’s default root password of “alpine.” In addition to showing a well-coiffed picture of Astley, the new wallpaper displays the message “ikee is never going to give you up,” a play on Astley’s saccharine addled 1987 hit “Never Gonna Give You Up.”

Tricking victims in to inadvertently playing the song has become a popular prank known as Rickrolling. A review of some of the source code, shows that the malware, once installed, searches the mobile phone network for other vulnerable iPhones and when it finds one, copies itself to them using the the default password and SSH, a Unix application also known as secure shell. People posting to this thread on Australian discussion forum Whirlpool first reported being hit on Friday.

A new twist on the rickrolling phenomena at least, and of course the good thing for the rest of the World is that the infection seems to be fairly localized.

To me it’s more of a PoC (Proof of Concept) than anything else, but it is a neat piece of programming and shows what some malicious minds could put together if they wanted to target iPhones.

From the authors perspective he just wants to let people know that if they are gonna mess with their iPhone they better secure their shit.

The attack is a wakeup call for anyone who takes the time to jailbreak an iPhone. While the hack greatly expands the capabilities of the Apple smartphone, it can also make it more vulnerable. Programs such as OpenSSH, which can only be installed after iPhones have undergone the procedure, can be extremely useful, but if owners haven’t bothered to change their root password, the programs also represent a gaping hole waiting to be exploited.

Indeed, a hacker going by the moniker ikee and claiming to be responsible for the worm said here that he wrote the program to bring awareness to the widely followed practice of failing to change the iPhone’s password.

“I was quite amazed by the number of people who didn’t RTFM and change their default passwords,” the unidentified worm writer said. “I admit I probably pissed of [sic] a few people, but it was all in good fun (well ok for me anyway).”

Ikee said the worm disables the SSH daemon so it can’t be targeted further.

And in the true hacker spirit, the worm disables SSH so it can’t get infected again or hacked by anyone else.

It doesn’t takes skills to own the box, it takes skills to stay on the box :)

Source: The Register

Posted in: Apple, Exploits/Vulnerabilities, Malware

Topic: Apple, Exploits/Vulnerabilities, Malware


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Turbodiff v1.01 BETA Released – Detect Differences Between Binaries

Keep on Guard!


Turbodiff is a binary diffing tool developed as an IDA plugin. It discovers and analyzes differences between the functions of two binaries.

Requirements

“Turbodiff 1.01 beta release 1” works with IDA starting from v5.0.

Instructions

For the binaries:
Download the plugin and store it at the directory “..\IDA\plugins”.

If you want to compile it on your own: We have compiled it and tested it using Borland C. For the free version of IDA Pro (4.9) you’ll need to first:

  1. Generate the ida_free.lib library. To do this execute: “implib -c ida_free.lib ida_free.def”
  2. Next, you must have the linker use this library.
  3. Compile.

Comparing two files:

  1. Open the first file to be compared with IDA and run /Option 1 (take info from this idb)/ from the plugin. Close.
  2. Open the second file to be compared with IDA and run /Option 1 (take info from this idb)/ from the plugin.
    Use /Option 2 (compare with…)/ from the plugin, and when prompted to select a file, select the first file.
  3. Chose if you want a log file to be genreated and run. Once finished a functions table will popup (watch Figure 1) describing results. The results are then saved for later usage.

You can download Turbodiff here:

IDA PRO v4.9 Sources and plugin (Free version)
IDA starting with version v5 Sources and plugin

Or read more here.

Posted in: Hacking Tools, Secure Coding

Topic: Hacking Tools, Secure Coding


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Facebook Used By Whitewell Trojan To Communicate

Outsmart Malicious Hackers


Facebook has had it’s fair share of security woes and the latest is the discovery of a new Trojan that uses Facebook to communicate.

Interesting that it’s using the Facebook notes feature to communicate depending on title/subject of the note.

The actual malware itself is spread through doc/pdf exploits and not through any flaws in Facebook itself.

Researchers at Symantec find a Trojan that uses Facebook to communicate with a command and control server.

The Trojan malware, known to Symantec as Whitewell, is being spread via e-mail through “documents (PDF, or MS Office formats) containing exploits for known vulnerabilities,” Andrea Lelli, a security analyst with Symantec Security Response, wrote on a Symantec blog Oct. 31. The malware works by contacting the mobile version of Facebook and using its Notes section. By analyzing the Trojan’s code, Lelli found that the Trojan will perform four different actions, depending on the notes’ titles that are found.

If the title is Wells, the note will contain the timedate stamp for when a machine was infected. If it is WebServer, however, the note will contain a URL to be contacted from which the Trojan will receive commands, Lelli wrote.

The malware can actually parse the data in Facebook, and post new notes itself meaning it is self-propagating according to whatever logic is programmed inside.

The ability of the trojan to do anything damaging is somewhat limited but it does show what could be achieved by using a social networking site as a command and control channel.

I’d imagine this won’t be the last we see and this could evolve into something much nastier.

If the note has the title ‘White’, it contains a URL that leads to an executable to be downloaded. If the title is anything else, the Trojan is programmed to wait, Lelli wrote.

This is not the first time social networks have been used to help control malware. In August, Arbor Networks researcher Jose Nazario uncovered a botnet using Twitter to communicate with its army of compromised machines.

According to Symantec, in this case, the documents containing the malware are made to look legitimate to conceal their intent, mimicking for example the names of well-known courier companies and utilizing popular headlines from the news media.

“Besides documents they can also spread the executables themselves, sending them with icons that resemble those that accompany legitimate documents, and with legit-looking file names such as ‘Competitive assessment.pdf .exe,'” Lelli wrote.

As with most attacks of this kind, the actual infection comes from lack of user knowledge and social engineering (double file extensions) as Windows STILL insists on hiding known file extensions from the user.

People have been falling for the old double-extension forever, I don’t see why Windows can’t just show extensions by default – do they scare people that much they have to be hidden?

Source: eWeek

Posted in: Malware, Privacy

Topic: Malware, Privacy


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Binging (BETA) – Footprinting & Discovery Tool (Google Hacking)

Keep on Guard!


It’s been a while since I’ve seen a tool of this type, back in the heydays of Google Hacking (which became the generic term for information gathering via search engines) there were multiple tools such as Gooscan and Goolag.

Binging is a simple tool to query Bing search engine. It will use your Bing API key and fetch multiple results. This particular tool can be used for cross domain footprinting for Web 2.0 applications, site discovery, reverse lookup, host enumeration etc. One can use various different directives like site, ip etc. and run queries against the engine. On top of it tool provides filtering capabilities so you can ask for unique URLs or hosts. It is also possible to filter results by applying power of regular expression. Get your Bing API key and use this tool for your audit, assessment and research.

You can download Binging here:

Binging.zip

Or read more here.

Posted in: Hacking Tools, Privacy, Web Hacking

Topic: Hacking Tools, Privacy, Web Hacking


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Windows 7 UAC (User Access Control) Ineffective Against Malware

Keep on Guard!


There have been a few stories about Windows 7, even one about Windows 7 UAC before and now it’s officially on sale I’d expect there to be many more.

As always malware and mass infections is a numbers game so the bad guys will always target the most popular and prolific operating systems to increase their chances of widespread infections.

For me personally UAC in Windows Vista was simply a pain in the ass, so much so I just turned it off completely as did most people rendering it completely ineffective. They seem to have toned it down in Windows 7 to make it less invasive and perhaps as a byproduct have made it less effective.

A researcher at Sophos reports putting Windows 7’s User Account Control feature to the test and finding the technology failed to block numerous pieces of malware. Microsoft, however, stresses that UAC is only one part of Windows 7’s security.

A researcher at Sophos called the UAC feature in Windows 7 ineffective after numerous pieces of malware snuck by the technology in a test.

Microsoft first introduced User Account Control in Windows Vista to improve security. After some users complained the number of alerts it generated were annoying, the company pledged to cut down on the number of prompts in Windows 7. The move however has raised concerns in the security community, and Sophos Senior Security Adviser Chester Wisniewski said his test proves Microsoft took it a step too far.

Wisniewski wrote on his blog Nov. 3 that seven of the 10 pieces of malware he tested ran with the default AUC enabled in Windows 7 without generating any prompts. As part of the test, no antivirus software was installed on the system. Two of the malware samples did not work in Windows 7; of the remaining eight, only one generated a prompt, and that one still would have been installed had the user clicked yes, Wisniewski told eWEEK.

I’d imagine it only throws an alert if the software being installed tries to modify system files or place itself in system directories (c:/windows etc).

That would make sense to me, and yes it would make it ineffective against malware and even more ineffective when the bad guys work out how it functions and adapt to that.

Nothing much new here though is it, run anything on Windows XP and you’ll get no warnings..so just be vigilant. I’d rather Microsoft try an educate people on good security practice rather than trying to implement half-arsed technical measures to protect against wetware ignorance.

When asked about the test, Microsoft officials pointed to the other features of Windows 7 that have improved security.

“Windows 7 is built upon the security platform of Windows Vista, which included a defense-in-depth approach to help protect customers from malware; this includes features like Security Development Lifecycle (SDL), User Account Control (UAC), Kernel Patch Protection, Windows Service Hardening, Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP),” a spokesperson said.

“Windows 7 retains all of the development processes, including going through the Security Development Lifecycle, and technologies that made Windows Vista the most secure Windows operating system ever released,” the spokesperson added. “Coupled with Internet Explorer 8—which includes added malware protection with its SmartScreen Filter—and Microsoft Security Essentials, Windows 7 provides flexible security protection against malware and intrusions.”.

All the above technologies are great and they do help a LOT when it comes to exploitation of vulnerabilities and trying to execute shell-code. But that’s not the biggest threat, the biggest threat is idiot users installing malware ‘by accident‘ on their own computers.

So yes, however obvious it may seem to us – you still need to install Anti-virus software on Windows 7.

Source: eWeek

Posted in: Countermeasures, Malware, Windows Hacking

Topic: Countermeasures, Malware, Windows Hacking


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UCSniff 3.0 Released – VoIP/IP Video Sniffing Tool

Outsmart Malicious Hackers


UCSniff is a VoIP & IP Video Security Assessment tool that integrates existing open source software into several useful features, allowing VoIP and IP Video owners and security professionals to rapidly test for the threat of unauthorized VoIP and Video Eavesdropping. Written in C/C++, and available on Linux and Windows, the software is free and available for anyone to download, under the GPLv3 license.

Why?

UCSniff was created as a Proof of Concept demonstration tool and a method of creating awareness around VoIP/UC threats. It can be used by VoIP/UC Administrators to test their own VoIP or Video Infrastructure in a pilot before vulnerabilities are rolled into production. It can also be used by security professionals as a method of convincing IT decision makers that security best practices should be applied to VoIP/UC in the same way that they are applied to other TCP/IP based, client-server applications.

New Features

  • Real time VoIP and Video monitoring.
  • New codec support, G729, G726, G723.
  • GUI version of Windows and Linux.
  • TFTP MitM Modification of IP phone settings.
  • New VideoSnarf tool – Converts offline RTP pcap file to media file.
  • Windows VLAN implementation, for VLAN Hopping in Windows.

Or read more here.

Posted in: Hacking News

Topic: Hacking News


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