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Cyber Security Group
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MSS Global Threat Response | 26 Mar 2014 | 0 comments

EXECUTIVE SUMMARY:

Security researchers have released a paper documenting a large and complex operation, code named “Operation Windigo”.  Since the campaign began in 2011, more than 25,000 Linux and UNIX servers were compromised to steal Secure Shell (SSH) credentials, to redirect Web visitors to malicious content, and to send spam. Well-known organizations such as cPanel and Linux Foundation were confirmed victims.

Targeted operating systems include Apple OS X, OpenBSD, FreeBSD, Microsoft Windows, and various Linux distributions. The paper claims Windigo is responsible for sending an average of 35 million spam messages on a daily basis. This spam activity is in addition to more than 700 Web servers currently redirecting approximately 500,000 visitors per day to malicious content.

The paper lists three main malicious components (ESET...

MSS Global Threat Response | 17 Mar 2014 | 0 comments

After the disclosure of a recent Denial of Service (DoS) tactic involving legitimate websites using WordPress, Symantec MSS has been applying additional scrutiny to customers that may have been involved. According to a blog post from Sucuri, “a large DDOS attack that leveraged thousands of unsuspecting WordPress websites as indirect source amplification vectors” has been uncovered in the wild. We’ve discovered continuing attempts by attackers to leverage a legitimate feature called “pingback” found in many WordPress configurations in our customer environments.

While the concept of “pingback” abuse isn’t new, the scale of this most recent episode is larger than previously seen. All impacted MSS customers have been...

MSS Global Threat Response | 12 Mar 2014 | 0 comments

Since the 27th of February, Symantec MSS has noticed a substantial increase of inbound scans on port 5000/TCP across our global customer base. While 5000/TCP is commonly associated with UPnP (Universal Plug and Play), it's also the default port for the HTTP administration interface on Synology NAS appliances. We believe this uptick in activity is related to multiple remotely exploitable vulnerabilities in Synology’s DiskStation Manager which were recently discovered. Of the most active scanning sources, most are located within China, Brazil, and the USA.

port-5000-blog-1.png

Synology is a Taiwanese company that specializes in home and enterprise network attached storage (NAS) appliances. Synology DiskStation Manager (DSM) is a Linux based operating system used for the DiskStation and RackStation lines of NAS products.

Multiple versions of Synology DiskStation Manager...

MSS Global Threat Response | 24 Feb 2014 | 0 comments

EXECUTIVE SUMMARY:

On February 20th 2014, Symantec published a blog on a new zero-day vulnerability in Adobe Flash (CVE-2014-0502) being exploited in the wild. Adobe has released security updates for Adobe Flash Player 12.0.0.44 and earlier versions for Windows and Macintosh and Adobe Flash Player 11.2.202.336 and earlier versions for Linux in Adobe Security Bulletin APSB14-07. These updates address vulnerabilities that could potentially allow an attacker to take control of the affected system. 

This Adobe Flash zero-day, Adobe Flash Player and AIR CVE-2014-0502 Remote Code Execution Vulnerability (CVE-2014-0502), is being used in a watering hole attack. This new attack has...

Kevin Haley | 20 Feb 2014 | 0 comments

It’s hard to think of a time when IT Security didn’t feel overburdened, but it’s only going to get worse. As mobile devices and the Internet of Things force their way into corporate structures, the number of risks that IT Security must account for is increasing substantially.

End-users have invaded corporate networks with mobile devices.  These devices have clear advantages for productivity and end-user happiness, but allowing mobile devices to be used for business creates new ways for employees to walk out of the corporation with corporate data, and new ways to walk in with malware.

To compound this potential for additional vulnerability, very few of these end-users realize the risks around these devices.  Research from a Norton Report shows that mobile device users engaged in risky behaviors at a much higher rate than when using a PC.  Many people...

Jeannie Warner | 19 Feb 2014 | 0 comments

I’m excited to see so many changes going on in the areas of cyber security. Our leadership recognizes the future trend of organizations needing to drive intelligent security instead of the older concept of just layering products to address individual issues, which I think responds well to a world where people are realizing that there’s no single solution or product, no ‘silver bullet’ that will keep their organization safe. Even the threats themselves are evolving, with malware coders actively adjusting their attacks with every patch and signature the good guys put out. We’ve built this awareness into our whole security strategy at Symantec, and as our fiscal year comes to a close I can look back on what we’ve done and where we’re going with real enthusiasm.

Looking backward, in the last 12 months in Managed Security Services we’ve re-architected how we handle and process big data to provide a...

MSS Global Threat Response | 19 Feb 2014 | 0 comments

EXECUTIVE SUMMARY:

FireEye published a blog on a new unpatched vulnerability in Microsoft Internet Explorer 10 (CVE-2014-0322) being exploited in the wild on 2/14/2014. The compromised website (vwg[.]org) was injected with an iframe that redirects the user to the attacker’s malicious page, which then runs a Flash file. The Flash file contains shell code and it downloads a PNG file from a remote site upon successful execution of the IE vulnerability. The PNG file has a DLL and EXE embedded at the bottom. The DLL launches the EXE which is the payload.

Data uncovered during Symantec investigation suggests a connection between this attack and the malicious actors known to Symantec as Hidden Lynx. The data indicates the same infrastructure is being leveraged as found in a previous attack by this group who used...

MSS Global Threat Response | 10 Feb 2014 | 0 comments

EXECUTIVE SUMMARY:

Credit and debit card data theft is one of the earliest forms of cybercrime and persists today. Cybercrime gangs organize sophisticated operations to steal vast amounts of data before selling it in underground marketplaces. Criminals can use the data stolen from a card’s magnetic strip to create clones. It’s a potentially lucrative business with individual cards selling for up to $100.

There are several routes attackers can take to steal this data. One option is to gain access to a database where card data is stored.  Another option is to target the point at which a retailer first acquires that card data – the Point of Sale (POS) system.

Modern POS systems are specially configured computers with sales software installed and are equipped with a card reader. Card data can be stolen by installing a device onto the card reader which can read the data off the card’s magnetic strip. This is a process known as “skimming”. As...

Vince Kornacki | 10 Feb 2014 | 4 comments

In previous installments we constructed our mobile development toolchain and cross compiled, installed, and executed TCPDUMP on our CyanogenMod Mobile Device. Now it's time to complete our mission by forwarding packets captured by TPCDUMP on our CyanogenMod Mobile Device to Wireshark on our Debian Workstation in order to conduct realtime mobile device network traffic monitoring within a slick GUI interface. First we'll need to download Netcat, the network Swiss army knife. And of course we'll need to cross compile Netcat for ARM processors. I sure hope you were paying attention in the previous installments! First unpack Netcat:

root@debian $ tar zxvf netcat-0.7.1.tar.gz
[OUTPUT TRUNCATED]

Then move into the newly created Netcat directory and set the "CC" environment variable to specify the ARM C compiler and the "LDFLAGS" environment...

Vince Kornacki | 10 Feb 2014 | 0 comments

TCPDUMP is extremely useful for monitoring network traffic when debugging applications and performing penetration tests. Unfortunately Android mobile devices do not include the TCPDUMP program. However, do not despair. This blog series will provide step-by-step instructions for cross compiling, installing, and running TCPDUMP on Android mobile devices. As Michael Buffer would say right before Hulk Hogan brings the smack down, "Let’s get ready to rumblllllllllllle!"

First things first. You'll need to root your Android device in order to run TCPDUMP. For the purposes of this blog series we’ll use CyanogenMod 11 (based on Android 4.4 KitKat) on our mobile device and Debian Jessie (the current Testing release) on our workstation. CyanogenMod is mobile device firmware based on the open-source Android operating...