Apr 282012
 

The FBI Workaround For Private Companies To Share Information With Law Enforcement Without CISPA

FORBES

Kashmir Hill, Forbes Staff

April 26, 2012

 

 

 

 

A debate is currently raging in Washington, D.C. and various politically-engaged spots on the Internet over CISPA, a bill that promises to increase cybersecurity by giving private companies carte blanche to hand over information about cyberthreats they see on their networks. Lawmakers have seemingly decided the best way to fight cybercriminals is to deputize private industry and let companies with unfettered access to the evidence do the bulk of the detective work involved in outing hackers and breaking up botnet rings. That saves the government the trouble of getting pesky subpoenas and warrants as required by the Constitution and privacy laws.

Opponents worry about all kinds of sensitive information being served up to the government on a silver platter given the legal immunity granted to companies in the bill and the murky definitions of what constitutes a “cyber threat.” What has been left out of the debate thus far, though, is the model that CISPA appears in many ways to be based upon. The FBI has been information-sharing with private industry for over a decade without a bill like CISPA in place.

 

 

The NCFTA “functions as a conduit between private industry and law enforcement.”

(Art from the site)

In 1997, long-time FBI agent Dan Larkin helped set up a non-profit based in Pittsburgh that “functions as a conduit between private industry and law enforcement.” Its industry members, which include banks, ISPs, telcos, credit card companies, pharmaceutical companies, and others can hand over cyberthreat information to the non-profit, called the National Cyber Forensics and Training Alliance (NCFTA), which has a legal agreement with the government that allows it to then hand over info to the FBI. Conveniently, the FBI has a unit, the Cyber Initiative and Resource Fusion Unit, stationed in the NCFTA’s office. Companies can share information with the 501(c)6 non-profit that they would be wary of (or prohibited from) sharing directly with the FBI.

“We can bring the pieces of intelligence together so we can see what it really is,” says Larkin of the advantage of bringing security specialists from different sectors together.

NCFTA director Ron Plesco lists off his organization’s purpose rotely: “We do information sharing with three goals: ID the cybercrime threat, share toward mitigation, share toward neutralization of threat.”

As part of a non-profit, Plesco could not comment specifically on CISPA, which would, as currently drafted, allow companies to share much richer and more individualized data directly with the government. “We get network data,” says Plesco. “Not PII (personally identifiable information).”

That means the NCFTA can pass along information, for example, about suspicious servers or IP addresses and content from spear-phishing emails that companies are seeing in their networks, but not the names or addresses of those who appear to be affiliated with the schemes.

“We can share what we see and hear with the government,” said Ron Plesco. “We can share in aggregate, but law enforcement has to develop their cases separately and independently.”

“An FBI agent works with [an NCFTA] analyst to get up to speed,” said agent Eric Strom who has been with the embedded FBI unit since 2006 when it was installed in the NCFTA office.

Inhabiting one floor of a building in Pittsburgh and with just 15 permanent employees, the NCFTA is little-known outside of information security circles, though they have been involved in some controversial operations in the past, including Dark Market. Despite the current uproar over how and why information should be shared with the government, most civil liberty groups I spoke with had never heard of the FBI’s on-going collaboration with private industry.

“We’re not in DC. We’re in Pittsburgh. We’re off the Beltway radar,” says Plesco. “Since we’re a non-profit, we don’t get called in to do briefings on the Hill. We don’t have marketing and PR though we do occasionally get thanked in FBI press releases.”

This happened most recently after Operation Ghost Click, the FBI’s takedown of a $14-million botnet ring run by six Estonians. The Estonians had infected over four million computers with DNS-changing malware that routed their computers to rogue DNS servers allowing the cybercriminals to display ads and send traffic to sites that profited them.

Several FBI agents involved in Ghost Click spoke with me about how information sharing through the NCFTA facilitated that investigation.

 

In 2009, an Internet security company, which the FBI prefers not to have named, saw malware affecting a customer and passed it along to the NCFTA. Soon, they got similar reports from another security researcher and an Internet payments company. “Some researcher sees malware or spam, then it leads to something bigger,” said FBI agent Eric Strom. “It generates intelligence and reporting.”

“For a year before the case started, we were seeing spam emanating from networks that they were able to track back to a company called Rove Digital,” said FBI agent Tom Grasso in a separate interview.

The embedded FBI unit builds an initial case with intelligence from the NCFTA and then refers it out to a field office. Strom says they generated 80 cases in 2011, including Ghost Click and Coreflood (another server seizure case). New York agreed to take the Ghost Click case in 2010.

“Historically, businesses would come to FBI a month or two later, which is a lifetime in the cyberworld, and reveal they’d had a problem,” said Strom. With NCFTA, they’re more likely to pass info along in real time. “This gets the fraud investigators from the different companies talking to each other.”

One of the advantages offered by both CISPA and the NCFTA is that private companies don’t just send information into a governmental black hole; they can get information back from the government about ongoing investigations, because they become partners with them.

Grasso started a mailing list with all the folks who had been tracking the malware activity, so they could continue to share information about what they were seeing on their networks.

“We had bimonthly teleconferences with FBI and private industry folks who would come into the office,” says Grasso. He said they had about 25-30 people at each meeting, including fraud and abuse researchers from private companies. and importantly from ISPs such as Cox, Century Link, Qwest, and Verizon (Correction: Representatives from ISPs were involved at a later stage, during meetings to discuss how to keep victims online after rogue DNS servers were seized). “It was the first time we brought private industry people in like that. These folks were giving up so much intel. We wanted them to know it wasn’t going into a black hole.”

As the New York office got close to taking the ring down through working with law enforcement in Estonia, they realized that people with infected computers would lose Internet access when the FBI seized the rogue servers that were operating out of New York and Chicago. The NCFTA collaboration came in handy again.

“We needed a solution to keep people online,” said Grasso. The malware had changed IP addresses to redirect infected computers to the DNS servers that were about to be seized. “We knew we couldn’t get on people’s computers and change the IP addresses back.”

So the FBI had to arrange for temporary servers so that 500,000 people in the U.S. wouldn’t suddenly lose their Internet service. “Running DNS servers is tricky because you see browser activity,” said Grasso. So they decided the FBI shouldn’t run the servers directly. Instead they had a third party ISP, ICS, run them. “The servers are recording the IP addresses of infected computers and those are being given to ISPs so they can notify users.”

(That ends soon, though, so make sure your computer isn’t infected or you lose service come July.)

Operation Ghost Click earned the NCFTA quiet raves. And quiet is how they like it to be.

 

It’s worth paying some attention now, though, to highlight that CISPA and the idea of information sharing are not a novel approach to cybersecurity.

“Information sharing is already going on,” said Allan Friedman, a technology fellow at the Brookings Institute, who pointed also to ISAC — a sector specific information sharing program set up by Bill Clinton in the 90s. “As we expand it, we need to understand what has failed and what has been successful.”

And to understand that, we perhaps need closer looks and more exposure of information sharing that’s already happening. It’s rather shocking that Congress has not called anyone from the NCFTA to the Hill to testify about how they function and how CISPA would change what they can do, or even make the need for a non-profit to facilitate information handovers obsolete.

 

 

 

MORE STORIES:

 

 

Adrian Kingsley-Hughes  / Contributor
Dave Thier  / Contributor
Larry Downes  / Contributor

Direct Link:  http://www.forbes.com/sites/kashmirhill/2012/04/26/the-fbi-workaround-for-private-companies-to-share-information-with-law-enforcement-without-cispa/

Feb 102012
 

Half of Fortune 500 firms infected with DNS Changer

Machines will be cut off from the Web next month, say experts

COMPUTER WORLD
By Gregg Keizer
February 2, 2012

Computerworld -

Half of all Fortune 500 companies and major U.S. government agencies own computers infected with the “DNS Changer” malware that redirects users to fake websites and puts organizations at risk of information theft, a security company said today.

DNS Changer, which at its peak was installed on more than four million Windows PCs and Macs worldwide — a quarter of them in the U.S. alone — was the target of a major takedown organized by the U.S. Department of Justice last November.

The takedown and accompanying arrests of six Estonian men, dubbed “Operation Ghost Click,” was the culmination of a two-year investigation, although some security researchers have been tracking the botnet since 2006. As part of the operation, the FBI seized control of more than 100 command-and-control (C&C) servers hosted at U.S. data centers.

According to Tacoma, Wash.-based Internet Identity (IID), which provides security services to enterprises, half of the firms in the Fortune 500, and a similar percentage of major U.S. government agencies, harbor one or more computers infected with DNS Changer.

IID used telemetry from its monitoring of client networks, as well as third-party data, to claim that at least 250 of the Fortune 500 companies and 27 out of 55 major government agencies had at least one computer or router infected with DNS Changer as of early this year.

The still-infected machines pose several problems, said experts.

“Initially, DNS Changer was worrisome because it could redirect you from a safe location to a dangerous one controlled by criminals,” said Rod Rasmussen, the chief technology officer of IID in an emailed statement. “However, the FBI temporarily fixed that. Now, the big worry is that machines that are still infected face a second vulnerability — they are left with little if any security.”

That’s because DNS Changer also blocks software updates — the patches vendors like Microsoft issue to fix flaws — and disables installed security software.

Others, however, have pointed out that computers still infected with DNS Changer have only weeks before they will be crippled.

As part of Operation Ghost Click, a federal judge approved a plan where clean DNS servers were deployed by the Internet Systems Consortium (ISC), the non-profit group that maintains the popular BIND DNS open-source software. Without that move, infected systems would have been immediately cut off from the Internet when the FBI seized the criminals’ domain servers.

But the ISC was authorized to maintain the alternate DNS servers only for 120 days, or until early next month.

“[The ISC] will shut down the [DNS] servers in March and anybody who is still using those servers will then lose access to the Internet,” said Wolfgang Kandek, chief technology officer of Qualys, in a Thursday post to that company’s security blog.

Qualys has added DNS Changer detection to its free BrowserCheck tool that runs on Windows PCs, while the umbrella organization DNS Changer Working Group — of which IID is a member — has created a website that steps users through the process of detecting and infected PCs and Macs.

 

Direct Link:   http://www.computerworld.com/s/article/9223941/Half_of_Fortune_500_firms_infected_with_DNS_Changer

Nov 182011
 

Feds lead biggest botnet takedown ever, end massive clickjack fraud
Cripples ‘DNS Changer’ botnet of 4 million machines allegedly controlled by Estonians
By Gregg Keizer
November 10, 2011

Computerworld – The botnet takedown announced Wednesday by the U.S. Department of Justice was the biggest in history, according to a security company that worked with authorities to identify the alleged criminals.

Dubbed “DNS Changer,” the collection of compromised computers numbered over four million machines, or more than twice the size of the Rustock botnet that Microsoft and U.S. law enforcement officials brought to its knees last March.

About a quarter of the bots were Windows PCs and Macs based in the U.S.

Feike Hacquebord, a senior threat researcher at Trend Micro, called the operation the “biggest cybercriminal takedown in history” in a blog post yesterday.

Trend Micro was one of several companies and organizations credited by the FBI for contributing to the investigation leading to the takedown. Others included Mandiant, Neustar, Spamhaus and the University of Alabama at Birmingham’s computer forensics research group.

Preet Bharara, the Manhattan-based U.S. District Attorney in charge of the case, said the fraud conducted with the botnet was “massive and sophisticated.”

On Wednesday, the DOJ charged seven men — six Estonians and one Russian — with 27 counts of wire fraud, money laundering and illegal computer access, alleging that the group operated a lucrative clickjacking scheme that generated over $14 million during a four-year period.

*** [ Six of the defendants resided in Estonia during the operation, which took place from 2007 to 2011. They were Vladimir Tsastsin, Timur Gerassimenko, Dmitri Jegorow, Valeri Aleksejev, Konstantin Poltev and Anton Ivanov. The seventh defendant, Andrey Taame, resided in Russia. ] ***

The malware responsible for hijacking users’ clicks — which were then redirected to hacker-created sites that resembled the real domains — came in a variety of forms, said researchers and authorities.

According to the Internet Storm Center, some of whose security experts were part of a working group that advised the DOJ, the botnet was created with several malware families, including the pernicious TDSS rootkit — also known as “Alureon” — as well as Trojan horses crafted for Mac OS X.

The federal indictment said that the gang infected personal computers by luring users to malicious websites or by duping them into downloading and installing purported video codecs that the scams claimed were necessary to view videos.

Trend Micro, which said it had been tracking the DNS Changer botnet since 2006, added that the alleged criminals updated the malware daily to change the DNS (domain name system) settings of each bot.

The malware also blocked users from updating most installed antivirus software, or receiving operating system patch updates, the indictment alleged.

Along with the arrests in Estonia — the Russian defendant remained at large — the U.S. Federal Bureau of Investigation (FBI) shut down over 100 domain and botnet command-and-control (C&C) servers hosted at data centers in New York City and Chicago.

That would have left infected PCs and Macs without a way to connect to the Internet: Seizing the domain servers effectively wiped their road map to the Web’s addresses. Instead, a federal judge approved a plan in which clean DNS servers were deployed by the Internet Systems Consortium (ISC), the non-profit group that maintains the popular BIND DNS open-source software.

ISC will operate the replacement DNS servers for 120 days, long enough, authorities said Wednesday, for users and Internet service providers (ISPs) to identify and scrub infected computers of the DNS Changer malware.

Unlike other botnet takedowns, such as the one aimed at Coreflood earlier this year, the DOJ will not remotely clean infected systems.

The FBI has posted instructions (download PDF) that people can use to determine whether their DNS records have been scrambled by the alleged hackers.

The agency has also created a tool that checks for DNS settings that may be among those controlled by the gang.

Microsoft, which has assisted in several botnet takedowns this year but did not participate in what authorities yesterday described as “Operation Ghost Click,” praised the botnet crippling.

“We commend the FBI and Department of Justice for the arrests, which we see as progress in the ongoing effort to hold cybercriminals accountable for their actions,” Microsoft said in a statement late Wednesday.

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld

Direct Link: http://www.computerworld.com/s/article/9221699/Feds_lead_biggest_botnet_takedown_ever_end_massive_clickjack_fraud?taxonomyId=82&pageNumber=1