Companies increasingly calling ‘advanced persistent threat’ instead of admitting to security system failures
When RSA Security disclosed in February that a third party had breached its networks, the company claimed that it had been hit by an advanced persistent threat. Federal research facility Oak Ridge National Laboratory also blamed its recent breach on an APT.
For both RSA and Oak Ridge, the attacks turned out to be a spear-phishing attack. In both cases, employees were tricked into opening the attached file that came with an email that looked like it came from within their organisations.
Almost all publicised and self-declared APT attacks this year have originated as spear phishing, Anup Ghosh, founder and chief scientist of Invincea, told eWEEK. Spear phishing may not be a “glamourous” way of breaching the network, but it is an extremely effective one, Ghosh said.
There is a growing feeling among security researchers that organisations were using APT as a convenient excuse when their network security has been breached. “The funny thing here is that the malware used in most of the ‘APT’ attacks we’ve seen recently isn’t really all that nefarious; it’s just the new stuff on the market,” Ghosh said.
While APTs are generally attacks that target sensitive data and are generally not opportunistic attacks, Ghosh noted that the attack methodology is not advanced at all. “Prey on the natural curiosities of the user; bank on the fact that organisations are using antiquated technology; get the user to open up the door to the network, establish residency, scan and move laterally – and all along the way, duping one user after another,” Ghosh said.
In the 2011 Data Breach Investigations Report, researchers from Verizon Business expressed some concerns about “APT hysteria” that has swept the security industry. The term’s originators intended it to refer to allegedly state-sponsored attacks from China, and others use it to describe any threat possessing “above average skill and determination”, Verizon researchers wrote.
However, it’s gotten to the point where thinking that “everyone is a target” of an APT has led to “irrational fears about the boogeyman while common thieves clean you out of house and home”, according to the report.
The APT bogeyman
“APT’s are the big bad wolf at the moment, and they’ve become a convenient cover for post-attack disclosures,” Gunter Ollmann, vice president of research at Damballa, told eWEEK. Attackers have been conducting APTs for a decade, but the victims didn’t want to admit they’d been hit, Ollmann said. When Google publicly admitted in January 2010 that it had been hit by Operation Aurora, this type of attack was thrust into the spotlight. “Since then, it’s become ‘okay’ to disclose whether your organisation succumbed to an APT,” Ollmann said.
In actuality, organisations that think they are victims of APTs are really the victims of “organised criminals, hacktivists, glorified script kiddies and their own mistakes”, the researchers wrote in the Verizon report.
Verizon’s report found that 78 percent of all incidents result in stolen bank card data. Credit card numbers are not what attackers launching APTs are after, as these “threat agents have more than money on their minds,” the report said.
Most attackers were not super-sophisticated state-sponsored cyber-criminals. With a lot of the major cyber-criminals behind bars, the current crop of attackers tends to be less sophisticated and relies on automated kits available online. The Verizon report said only 3 percent of all incidents were so sophisticated they were considered nearly impossible to stop.
“In many cases, what is being called an APT is, in reality, just another cyber-crime attack – motivated by the usual monetisation and fraud aspects and using the same tools,” Ollmann said. Organisations need to focus on layered defenses and regularly stay on top of basic security. They also need to work with employees to better recognise phishing attacks.