The New York Times claims that the U.S. National Security Agency used intelligence gleaned from a clandestine operation to compromise North Korea’s cyber warfare unit to pin the blame for the Sony Pictures Entertainment hack on the reclusive Communist country. According to the story by David Sanger and Martin Fackler, the Obama Administration’s decision to quickly blame the hack on the DPRK grew out of a four year-old National Security Agency (NSA) program that compromise Chinese networks that connect North Korea to the outside world. The classified NSA program eventually placed malware that could track the internal workings of the computers and networks used by the North’s hackers and under the control of the Reconnaissance General Bureau, the North Korean intelligence unit, and Bureau 121, the North’s hacking unit, which mostly operates out of China. It has long been recognized that North Korea, which lacks a mature information technology infrastructure, does much of […]
Web
Android in the Coal Mine: Open Source, Patching and Internet of Things
In brief: Google’s decision not to patch a security hole in versions of Android used by hundreds of millions of consumers is a bad omen for the Internet of Things and will likely push some Android users to alternative versions of the operating system.
Cat and Mouse: Web Attacks Increasingly Sidestep WAF Protections
Recently, the Akamai Threat Research Team unveiled a unique distributed brute force attack campaign targeting nearly five hundred WordPress applications. What’s interesting about this campaign? It clearly demonstrates how Web attackers are becoming more sophisticated, attempting to evade security controls – specifically Web Application Firewalls (WAFs) and rate control protections. A Short Primer to Brute-Force Attacks Brute force Web attackers attempt to gain privileged access to a Web application by sending a very large set of login attempts, within a short period of time. Using volumetric single source of attack is easily mitigated by blacklisting. Today’s brute force attacks are typically characterized by volumetric attacks coming from distributed IPs. In this way, if the attacker’s source IP is detected, they can still continue with the attack campaign by switching a source IP. As part of this cat-and-mouse evolution, WAFs are enhanced with several rate control measures that detect and block […]
New Clues In Sony Hack Point To Insiders, Away from DPRK
A strong counter-narrative to the official account of the hacking of Sony Pictures Entertainment has emerged in recent days, with the visage of the petulant North Korean dictator, Kim Jong Un, replaced by another, more familiar face: former Sony Pictures employees angry over their firing during a recent reorganization at the company. Researchers from the security firm Norse allege that their investigation of the hack of Sony has uncovered evidence that leads, decisively, away from North Korea as the source of the attack. Instead, the company alleges that a group of six individuals is behind the hack, at least one a former Sony Pictures Entertainment employee who worked in a technical role and had extensive knowledge of the company’s network and operations. [Read Security Ledger coverage of the hack of Sony Pictures Entertainment.] If true, the allegations by Norse deal a serious blow to the government’s account of the incident, which placed the blame squarely on […]
With Multi-Vector Attacks, Quality Threat Intelligence Matters
In the last year, the world’s attention has been riveted by a series of high-profile hacks of major corporations in retail, finance and the entertainment industry, among others. Each of these incidents is unique, involving different threat actors and motives. However, each of these attacks is also a sterling example of what we, at Cisco, term “multi-vector attack” that employs a range of technologies, deployed in numerous stages, to penetrate the defenses of the target organization. Here at Cisco, we have studied these attacks in-depth and have identified some commonalities among these multi-vector attack, and useful approaches to combat them. This blog post will discuss some of our findings. About Multi-Vector Attacks Any cyber attack, large or small is born from a weak link in the security chain. These weak links take many forms: poorly configured Web servers, gullible employees or vulnerable-but-common applications like Microsoft Office, Adobe Reader and Java are common examples. Multi-vector attacks […]
