Tag Archives: Malware

Security firms warn of new cyber threat to electric grid

An electricity station with high-tension electricity power lines is seen in Galapagar, Spain, January 20, 2017.

By Jim Finkle

(Reuters) – Two cyber security companies said they have uncovered a sophisticated piece of malicious software capable of causing power outages by ordering industrial computers to shut down electricity transmission.

Analysis of the malware, known as Crash Override or Industroyer, indicates it was likely used in a December 2016 cyber attack that cut power in Ukraine, according to the firms, Slovakian security software maker ESET and U.S. critical-infrastructure security firm Dragos Inc.

The discovery may stoke fears about cyber vulnerabilities in power grids that have intensified in the wake of the December Ukraine attack, and one a year earlier that also cut power in that nation.

Ukraine authorities have previously blamed Russia for the attacks on its grid. Moscow has denied responsibility.

Dragos founder Robert M. Lee said the malware is capable of causing outages of up to a few days in portions of a nation’s grid, but is not potent enough to bring down a country’s entire grid.

The firm has alerted government authorities and power companies about the threat, advising them of steps to defend against the threat, Lee said in an interview.

Crash Override can be detected if a utility specifically monitors its network for abnormal traffic, including signs that the malware is searching for the location of substations or sending messages to switch breakers, according to Lee, a former U.S. Air Force warfare operations officer.

The sample of Crash Override that was analyzed by Dragos is capable of attacking power operators across Europe, according to Lee.

“With small modifications, it could be leveraged against the United States,” he said.

Reuters reviewed an ESET technical analysis of the malware provided by the security firm, which they planned to release publicly on Monday. An ESET spokeswoman said the firm’s researchers were not available for comment ahead of its release.

ESET said in its report that it believed the malware was “very probably” used in the 2016 attack in Ukraine, noting it has an activation time stamp of Dec. 17, the day of the outage.

Crash Override is the second piece of malware discovered to date that is capable of disrupting industrial processes, according to Lee.

The first, Stuxnet, was discovered in 2010 and is widely believed by security researchers to have been used by the United States and Israel to attack Iran’s nuclear program.

Malware has been used in other attacks on industrial targets, including the 2015 Ukraine power outage, but in those cases human intervention was required to interfere with operations, Lee said.

(Reporting by Jim Finkle in Toronto; Editing by Tom Brown and Richard Pullin)

Chipotle says hackers hit most restaurants in data breach

Signage for a Chipotle Mexican Grill is seen in Los Angeles, California, United States, April 25, 2016. REUTERS/Lucy Nicholson/File Photo

By Lisa Baertlein

(Reuters) – Hackers used malware to steal customer payment data from most of Chipotle Mexican Grill Inc’s <CMG.N> restaurants over a span of three weeks, the company said on Friday, adding to woes at the chain whose sales had just started recovering from a string of food safety lapses in 2015.

Chipotle said it did not know how many payment cards or customers were affected by the breach that struck most of its roughly 2,250 restaurants for varying amounts of time between March 24 and April 18, spokesman Chris Arnold said via email.

A handful of Canadian restaurants were also hit in the breach, which the company first disclosed on April 25.

Stolen data included account numbers and internal verification codes. The malware has since been removed.

The information could be used to drain debit card-linked bank accounts, make “clone” credit cards, or to buy items on certain less-secure online sites, said Paul Stephens, director of policy and advocacy at the non-profit Privacy Rights Clearinghouse.

The breach could once again threatens sales at its restaurants, which only recently recovered after falling sharply in late 2015 after Chipotle was linked to outbreaks of E. coli, salmonella and norovirus that sickened hundreds of people.

An investigation into the breach found the malware searched for data from the magnetic stripe of payment cards.

Arnold said Chipotle could not alert customers directly as it did not collect their names and mailing addresses at the time of purchase.

The company posted notifications on the Chipotle and Pizzeria Locale websites and issued a news release to make customers aware of the incident.

Linn Freedman, an attorney at Robinson & Cole LLP specializing in data breach response, said Chipotle was putting the burden on the consumer to discover possible fraudulent transactions by notifying them through the websites.

“I don’t think you will get to all of the customers who might have been affected,” she said.

Security analysts said Chipotle would likely face a fine based on the size of the breach and the number of records compromised.

“If your data was stolen through a data breach that means you were somewhere out of compliance” with payment industry data security standards, Julie Conroy, research director at Aite Group, a research and advisory firm.

“In this case, the card companies will fine Chipotle and also hold them liable for any fraud that results directly from their breach,” said Avivah Litan, a vice president at Gartner Inc <IT.N> specializing in security and privacy.

Chipotle did not immediately comment on the prospect of a fine.

Retailer Target Corp <TGT.N> in 2017 agreed to pay $18.5 million to settle claims stemming from a massive data breach in late 2013.

Hotels and restaurants have also been hit. They include Trump Hotels, InterContinental Hotels Group <IHG.L> as well as Wendy’s <WEN.O>, Arby’s and Landry’s restaurants.

Shares in Chipotle Mexican Grill ended marginally lower at $480.15 on Friday following the announcement.

(Additional reporting by Natalie Grover and Siddharth Cavale in Bengaluru and Tom Polansek and Nandita Bose in Chicago; Editing by Grant McCool and Lisa Shumaker)

Hackers hit Russian bank customers, planned international cyber raids

FILE PHOTO: The logo of Sberbank is seen on top of a building in central Moscow, Russia April 22, 2016. REUTERS/Maxim Zmeyev/File Photo

By Jack Stubbs

MOSCOW (Reuters) – Russian cyber criminals used malware planted on Android mobile devices to steal from domestic bank customers and were planning to target European lenders before their arrest, investigators and sources with knowledge of the case told Reuters.

Their campaign raised a relatively small sum by cyber-crime standards – more than 50 million roubles ($892,000) – but they had also obtained more sophisticated malicious software for a modest monthly fee to go after the clients of banks in France and possibly a range of other western nations.

Russia’s relationship to cyber crime is under intense scrutiny after U.S. intelligence officials alleged that Russian hackers had tried to help Republican Donald Trump win the U.S. presidency by hacking Democratic Party servers.

The Kremlin has repeatedly denied the allegation.

The gang members tricked the Russian banks’ customers into downloading malware via fake mobile banking applications, as well as via pornography and e-commerce programs, according to a report compiled by cyber security firm Group-IB which investigated the attack with the Russian Interior Ministry.

The criminals – 16 suspects were arrested by Russian law enforcement authorities in November last year – infected more than a million smartphones in Russia, on average compromising 3,500 devices a day, Group-IB said.

The hackers targeted customers of state lender Sberbank <SBER.MM>, and also stole money from accounts at Alfa Bank and online payments company Qiwi <QIWI.O>, exploiting weaknesses in the companies’ SMS text message transfer services, said two people with direct knowledge of the case.

Although operating only in Russia before their arrest, they had developed plans to target large European banks including French lenders Credit Agricole <CAGR.PA>, BNP Paribas <BNPP.PA> and Societe Generale <SOGN.PA>, Group-IB said.

A BNP Paribas spokeswoman said the bank could not confirm this information, but added that it “has a significant set of measures in place aimed at fighting cyber attacks on a daily basis”. Societe Generale and Credit Agricole declined comment.

The gang, which was called “Cron” after the malware it used, did not steal any funds from customers of the three French banks. However, it exploited the bank service in Russia that allows users to transfer small sums to other accounts by sending an SMS message.

Having infected the users’ phones, the gang sent SMS messages from those devices instructing the banks to transfer money to the hackers’ own accounts.

The findings illustrate the dangers of using SMS messages for mobile banking, a method favored in emerging countries with less advanced internet infrastructure, said Lukas Stefanko, a malware researcher at cyber security firm ESET in Slovakia.

“It’s becoming popular among developing nations or in the countryside where access to conventional banking is difficult for people,” he said. “For them it is quick, easy and they don’t need to visit a bank… But security always has to outweigh consumer convenience.”

CYBER CRIMINALS

The Russian Interior Ministry said a number of people had been arrested, including what it described as the gang leader. This was a 30-year-old man living in Ivanovo, an industrial city 300 km (185 miles) northeast of Moscow, from where he had commanded a team of 20 people across six different regions.

Four people remain in detention while the others are under house arrest, the ministry said in a statement.

“In the course of 20 searches across six regions, police seized computers, hundreds of bank cards and SIM cards registered under fake names,” it said.

Group-IB said the existence of the Cron malware was first detected in mid-2015, and by the time of the arrests the hackers had been using it for under a year.

The core members of the group were detained on Nov. 22 last year in Ivanovo. Photographs of the operation released by Group-IB showed one suspect face down in the snow as police in ski masks handcuffed him.

The “Cron” hackers were arrested before they could mount attacks outside Russia, but plans to do that were at an advanced stage, said the investigators.

Group-IB said that in June 2016 they had rented a piece of malware designed to attack mobile banking systems, called “Tiny.z” for $2,000 a month. The creators of the “Tiny.z” malware had adapted it to attack banks in Britain, Germany, France, the United States and Turkey, among other countries.

The “Cron” gang developed software designed to attack lenders including the three French groups, it said, adding it had notified these and other European banks at risk.

A spokeswoman for Sberbank said she had no information about the group involved. However, she said: “Several groups of cyber criminals are working against Sberbank. The number of groups and the methods they use to attack us change constantly.”

“It isn’t clear which specific group is being referred to here because the fraudulent scheme involving Android OS (operating system) viruses is widespread in Russia and Sberbank has effectively combated it for an extensive period of time.”

Alfa Bank did not provide a comment. Qiwi did not respond to multiple requests for comment.

Google <GOOGL.O>, the maker of Android, has taken steps in recent years to protect users from downloading malicious code and by blocking apps which are insecure, impersonate legitimate companies or engage in deceptive behaviors.

A Google spokesman said: “We’ve tracked this malware family for several years and will continue to take action on its variants to protect our users.”

FAKE MOBILE APPS

The Russian authorities, bombarded with allegations of state-sponsored hacking, are keen to show Russia too is a frequent victim of cyber crime and that they are working hard to combat it. The interior and emergencies ministries, as well as Sberbank, said they were targeted in a global cyberattack earlier this month.

Since the allegations about the U.S. election hacking, further evidence has emerged of what some Western officials say is a symbiotic relationship between cyber criminals and Russian authorities, with hackers allowed to attack foreign targets with impunity in return for cooperating with the security services while Moscow clamps down on those operating at home.

The success of the Cron gang was facilitated by the popularity of SMS-banking services in Russia, said Dmitry Volkov, head of investigations at Group-IB.

The gang got their malware on to victims’ devices by setting up applications designed to mimic banks’ genuine apps. When users searched online, the results would suggest the fake app, which they would then download. The hackers also inserted malware into fake mobile apps for well-known pornography sites.

After infecting a customer’s phone, the hackers were able to send a text message to the bank initiating a transfer of up to $120 to one of 6,000 bank accounts set up to receive the fraudulent payments.

The malware would then intercept a confirmation code sent by the bank and block the victim from receiving a message notifying them about the transaction.

“Cron’s success was due to two main factors,” Volkov said. “First, the large-scale use of partner programs to distribute the malware in different ways. Second, the automation of many (mobile) functions which allowed them to carry out the thefts without direct involvement.”

($1 = 56.0418 roubles)

(The story is refiled to fix typo in spelling of Societe Generale)

(Additional reporting by Maya Nikolaeva in Paris and Eric Auchard in Frankfurt; Editing by Christian Lowe and David Stamp)