Dutch Intel Agency Reportedly Helped US Attribute DNC Hack to Russia

The General Intelligence and Security Service of the Netherlands broke into Cozy Bears network in 2014 and spotted the group launching attacks, de Volkskrant says.

Information provided by the General Intelligence and Security Service of the Netherlands (AIVD) helped US intelligence officials attribute to the Russians the controversial 2016 hacking attack on the Democratic National Committee (DNC), Dutch newspaper
de Volkskrant
reported this week.
According
to the paper, agents from AIVD managed to infiltrate the network of a university building in Moscows Red Square in summer 2014 that Russian threat group APT29, aka Cozy Bear, was using. The intrusion provided Dutch intelligence agents with unprecedented visibility into the activities of the group, which since 2010 has been linked to numerous attacks on government organizations, and energy and telecommunication companies.
AIVDs access to the network was so complete that Dutch agents were able to use a CCTV in the building to watch every move of the 10 or so Cozy Bear actors who used the network. By comparing photos gathered from the snooping with photos of known Russian agents, AIVD was able to determine with a high level of confidence Cozy Bear was led by Russias Foreign Intelligence Service, the Dutch newspaper said.
It was that access that allowed Dutch agents to spot Cozy Bear launching an attack on the DNC network in summer 2015 and transferring emails and documents from the breached networks to its own servers. AIVDs information on the attack ultimately helped US intelligence agencies state with a high level of confidence that Moscow was involved in the attacks,
de Volkskrant
quoting several unnamed sources. The NSA and other intelligence agencies have publicly acknowledged receiving the help of a western ally in identifying the actor behind the DNC attack.
The DNC attack, and the subsequent leak of thousands of emails from Democratic candidate Hillary Clintons campaign, later prompted accusations of Russian meddling in the 2016 Presidential election and the Trump campaigns alleged involvement in it.
The 2015 attack on the DNC network is not the only tip that Dutch have given US intelligence agencies in the two years or so while they had access to Cozy Bears network.
AIVDs access to Cozy Bears network also allowed the agency to warn US officials of an attack on the US State Department network in late 2014. The APT group had managed to obtain email addresses and login credentials belonging to several State Department employees and had used that to access a non-classified portion of the State Department network.
Teams from the NSA and FBI used information provided by the Dutch to eventually prevent Cozy Bear from expanding its access to more critical areas of the State Department network. The attack, which one official
later described
as the worst ever, forced the State Department to shut down access to its email systems for a weekend in order to restore security.
During the attack, Cozy Bear managed to send an email purportedly from the State Department to an individual in the White House. The email essentially tricked the employee into sharing his email credentials with a Cozy Bear threat actor who then used it to access a server containing emails sent and received by then President Obama, the Dutch newspaper said. Cozy Bear, however, did not manage gain access to any classified system in the White House breach.
Related Content:
Russian Hackers Behind DNC Breach Wage Post-US Election Attacks

State Dept. Breach Heightens Concerns Over Resilience Of Government Networks
White House Says Unclassified Network Hit In Cyberattack
5 Things We Know So Far About The DNC Hack

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Dutch Intel Agency Reportedly Helped US Attribute DNC Hack to Russia