ÐÇ¿Õ´«Ã½

Skip to main content

EXPLAINER: Ransomware and its role in supply chain attacks

FILE - Employees watch electronic boards to monitor possible ransomware cyberattacks at the Korea Internet and Security Agency in Seoul, South Korea in this Monday, May 15, 2017 file photo. (File/Yonhap via AP) FILE - Employees watch electronic boards to monitor possible ransomware cyberattacks at the Korea Internet and Security Agency in Seoul, South Korea in this Monday, May 15, 2017 file photo. (File/Yonhap via AP)
Share

Another holiday weekend in the U.S., another ransomware attack that has paralyzed businesses around the world.

This time it's affecting an untold number of small and big companies that use IT software from a company called Kaseya.

High-profile ransomware attacks in May hit the world's largest meat-packing company and the biggest U.S. fuel pipeline, underscoring how gangs of extortionist hackers can disrupt the economy and put lives and livelihoods at risk.

WHAT IS RANSOMWARE? HOW DOES IT WORK?

Ransomware scrambles the target organization's data with encryption. The criminals leave instructions on infected computers for negotiating ransom payments. Once paid, they provide decryption keys for unlocking those files.

Ransomware crooks have also expanded into data-theft blackmail. Before triggering encryption, they sometimes quietly copy sensitive files and threaten to post them publicly unless they get their ransom payments.

WHAT'S A SUPPLY-CHAIN ATTACK?

The latest attack affecting Kaseya customers combines a ransomware operation with what's known as a supply-chain attack, which typically involves sneaking malicious code into a software update automatically pushed out to thousands of organizations.

Kaseya says the ransomware affected its product for remotely monitoring networks; but because many of its clients are providers of broader IT management services, a large number of organizations is likely to be affected.

"What makes this attack stand out is the trickle-down effect, from the managed service provider to the small business," said John Hammond of the security firm Huntress Labs. "Kaseya handles large enterprise all the way to small businesses globally, so ultimately, it has the potential to spread to any size or scale business."

Until now, the best-known recent supply-chain attack was attributed to elite Russian hackers and targeted software provider SolarWinds. But the motive was different; it was a massive intelligence operation targeting government agencies and others, not an attempt to extort money.

HOW DO RANSOMWARE GANGS OPERATE?

The criminal syndicates that dominate the ransomware business are mostly Russian-speaking and operate with near impunity out of Russia and allied countries. Though barely a blip three years ago, the syndicates have grown in sophistication and skill. They leverage dark web forums to organize and recruit while hiding their identities and movements with sophisticated tools and cryptocurrencies like Bitcoin that make payments -- and their laundering -- harder to track.

Most experts have tied the Kaseya attack to a group known as REvil, the same ransomware provider that the FBI linked to an attack on JBS SA, a major global meat processor, amid the Memorial Day holiday weekend.

Active since April 2019, the group provides ransomware-as-a-service, meaning it develops the network-paralyzing software and leases it to so-called affiliates who infect targets and earn the lion's share of ransoms.

WHO IS AFFECTED?

The scale of the attack affecting Kaseya is not yet clear, but it's already been blamed for closing stores across a grocery chain in Sweden because their cash registers weren't working.

Last year alone in the U.S., ransomware gangs hit more than 100 federal, state and municipal agencies, upwards of 500 health care centers, 1,680 educational institutions and untold thousands of businesses, according to the cybersecurity firm Emsisoft. Dollar losses are in the tens of billions. Accurate numbers are elusive. Many victims shun reporting, fearing the reputational blight.

CTVNews.ca ÐÇ¿Õ´«Ã½

Three men were injured after trying to subdue a man armed with a knife during afternoon prayers at a Montreal-area mosque Friday afternoon.

Police have arrested an 18-year-old woman who allegedly stole a Porsche and then ran over its owner in an incident that was captured on video.

Since she was a young girl growing up in Vancouver, Ginny Lam says her mom Yat Hei Law made it very clear she favoured her son William, because he was her male heir.

A 15-year-old boy who was the subject of an emergency alert in New Brunswick has been arrested.

The search for a missing six-year-old boy in Shamattawa is continuing Friday as RCMP hope recent tips can help lead to a happy conclusion.

Emergency crews in northern Ontario found the bodies of four people inside a home where a fire broke out Thursday night.

Local Spotlight

Getting a photograph of a rainbow? Common. Getting a photo of a lightning strike? Rare. Getting a photo of both at the same time? Extremely rare, but it happened to a Manitoba photographer this week.

An anonymous business owner paid off the mortgage for a New Brunswick not-for-profit.

They say a dog is a man’s best friend. In the case of Darren Cropper, from Bonfield, Ont., his three-year-old Siberian husky and golden retriever mix named Bear literally saved his life.

A growing group of brides and wedding photographers from across the province say they have been taken for tens of thousands of dollars by a Barrie, Ont. wedding photographer.

Paleontologists from the Royal B.C. Museum have uncovered "a trove of extraordinary fossils" high in the mountains of northern B.C., the museum announced Thursday.

The search for a missing ancient 28-year-old chocolate donkey ended with a tragic discovery Wednesday.

The Royal Canadian Mounted Police is celebrating an important milestone in the organization's history: 50 years since the first women joined the force.

It's been a whirlwind of joyful events for a northern Ontario couple who just welcomed a baby into their family and won the $70 million Lotto Max jackpot last month.

A Good Samaritan in New Brunswick has replaced a man's stolen bottle cart so he can continue to collect cans and bottles in his Moncton neighbourhood.