The security firm Bit9 defended its response to a hack of its own network last week and promised to release more information to the public about what happened – just not quite yet. In a blog post dated Saturday, February 9, the company’s CTO, Harry Sverdlove, said that the company responded promptly to the attack and contacted customers as soon as it completed its own investigation of the hack, which allowed unknown assailants to sign malicious programs using a Bit9 code signing server. That malware was subsequently released on networks of Bit9 customers. Sverdlove said the company’s “first and foremost priority was to inform our customers quickly and directly,” and that the company did so “as soon as we understood and had mitigated the attack, and we were able to provide actionable advice.” The blog post by Sverdlove, just a day after a post by Bit9 CEO Patrick Morley that disclosed […]
Tag: APT
Whitelist Goes Black: Security Firm Bit9 Hacked
Application “whitelisting” offers an alternative to signature based malware protection. Rather than trying to spot the bad guys, the thinking goes, just identify a list of approved (whitelisted) applications, then block everything else. But what happens when the whitelist, itself, becomes compromised? That’s the scenario that’s playing out with customers of whitelisting firm Bit9, which acknowledged a breach of its corporate network that allowed unknown assailants to gain control of an application code signing server. The acknowledgement came after Bit9 was contacted regarding the breach by Brian Krebs of Krebsonsecurity.com, which broke the news Friday. Little is known about the incident. In a blog post, Bit9’s CEO, Patrick Morley, said that only three of the company’ s customers were affected. Those customers identified malware on their networks that had been signed by one of Bit9’s code signing servers. The lapse was the result of a breach on Bit9’s own network. […]
New Malware Takes ‘Extended Naps’ To Avoid Detection
It’s a truism that even the bleakest circumstances look a bit brighter after a good nap. Well, that wisdom isn’t lost on malware authors either. A newly discovered Trojan Horse program, dubbed Trojan Nap, is programmed to use extended sleep cycles to fool behavior based anti-malware tools, according to a report from the firm FireEye. In a blog post Tuesday, researchers Abhishek Singh and Ali Islam said the new malware has a function, dubbed SleepEx() that can be used to configure long “naps” that the malware takes after it is installed on a compromised system. The default value, 600,000 milliseconds – or 10 minutes – seems designed to fool automated analysis systems that are programmed to capture a sample of behavior for a set time frame. “By executing a sleep call with a long timeout, Nap can prevent an automated analysis system from capturing its malicious behavior,” FireEye said. Like other […]
You’ve Been Hacked By APT! (The Video)
The whole APT – or “Advanced Persistent Threat” – meme has received a lot of attention in the media. This site and others have written about APT-style hacks, such as the recent compromise at The New York Times. But what does an APT hack look like? And what would it mean if you or your employer were in the crosshairs of an APT-type actor? The SANS Institute’s Securing The Human project has put together a nice training video that helps answer some of these questions, and to explain how APT-style attacks work. This is good stuff – explaining the difference between cyber crime and APT, and generic enough that any organization could use it as a training video. SANS says that it will produce one of these a month, and post them on the first of each month. My only criticism here is that, after they do a solid job describing […]
Friday Night Massacre: Twitter Hacked, Info on 250k Exposed
What better time to drop some really bad and embarrassing news than late on a Friday afternoon, as everyone is heading out the door? So it was with social media giant Twitter, which dropped a bombshell late Friday: revealing that it had been compromised in an “extremely sophisticated” attack that yielded the account credentials for around 250,000 users. A blog post by Twitter Security Team member Bob Lord on Friday said that the company has been investigating the breach all week long, after detecting unusual patterns of account access across its network. After stopping an attack that was in progress, the company’s investigation revealed that the attackers “may have had access to limited user information – usernames, email addresses, session tokens and encrypted/saltedversions of passwords – for approximately 250,000 users,” Lord wrote. Twitter did not discuss the circumstances of the breach, but reiterated guidance from the U.S. Department of Homeland Security for users to disable Java […]
