(Artwork. Source: bitcoinexchangeguide.com) Ransomware attacks have been on the rise in South Korea over the past year, paralyzing hospitals and shopping malls amid the COVID-19 pandemic leading to an increase in online shopping activities. . On June 3, a large plastic surgery hospital in the south of Seoul announced on its website that its server had been attacked with ransomware and that hackers appeared to have stolen data. patient’s personal data. This is the latest in a series of recently reported ransomware attacks – a tactic used by cybercriminals to infiltrate businesses’ systems and use their data to demand ransom. ransom. According to the South Korean Ministry of Science and Information Technology, last year there were 127 ransomware attacks, a threefold increase from the previous year. Since the beginning of this year, the country has recorded 65 attacks with ransomware. Malware attacks blackmail was aimed at various businesses in Korea. Last month, food delivery company Super Hero’s operations were paralyzed for hours after an attack that affected 15,000 delivery workers nationwide. Last November, local fashion and retail group E-Land was also “inquired” by hackers, forcing 23 of the 50 branches of the NC Department Store and NewCore Outlet to suspend operations. Mr. Kim Seung-joo, Professor of Cyber ​​Security at University Korea , commented that as companies are forced to choose to increase their reliance on remote work during the pandemic, cyber attacks malicious code Blackmail has become a bigger threat because they can paralyze the entire working system. This has led to many companies paying a ransom and has led hackers to carry out more attacks. He urged businesses to invest in cybersecurity to prevent the threat in the first place. In response to ransomware attacks in the near future, last month, the Korean Ministry of Information and Communications Technology set up a 24-hour monitoring group to support hacked companies. . The government is now providing assistance to affected companies in system recovery.

The entrance to a shopping mall in Seoul, South Korea is closed after a ransomware attack. (Source: Yonhap) On June 3, a large plastic surgery hospital in the south of Seoul announced on its website that its server had been attacked with ransomware and that hackers appeared to have stolen data. patient’s personal data. This is the latest in a series of recently reported ransomware attacks – a tactic used by cybercriminals to infiltrate businesses’ systems and use their data to demand ransom. ransom. According to the Korean Ministry of Science and Information Technology, last year there were 127 ransomware attacks, a threefold increase from the previous year. Since the beginning of this year, the country has recorded 65 attacks with ransomware. Ransomware attacks have targeted various businesses in South Korea. Last month, food delivery company Super Hero’s operations were paralyzed for hours after an attack that affected 15,000 delivery workers nationwide. Last November, local retail and fashion group E-Land was also “inquired” by hackers, forcing 23 of the 50 branches of the NC Department Store and NewCore Outlet to suspend operations. Kim Seung-joo, a professor of cybersecurity at Korea University, said that in the context of companies being forced to choose to increase their reliance on remote working during the pandemic, ransomware attacks Money has become a bigger threat because they can paralyze the whole working system. This has led to many companies paying a ransom and has led hackers to carry out more attacks. Kim Seung-joo urged businesses to invest in cybersecurity to prevent the threat in the first place. In response to ransomware attacks, last month, South Korea’s Ministry of Information and Communications Technology set up a 24-hour monitoring team to assist hacked companies. The government is now providing assistance to affected companies in system recovery. (according to Yonhap)

Appropriate measures should be taken to limit the risk from ransomware. Illustration. With this form of attack, hackers often use tricks to fake websites, extract data of agencies and organizations and demand ransom. Cybercriminals carry out cyberattacks according to a concise strategy that is applicable to many industries. An analysis of recent experts shows that, in 2020 alone, the amount of damage related to ransomware attacks has reached billions of dollars. More dangerously, this behavior also targets the government’s information technology systems, causing serious impact. To protect critical data from attacks, government IT systems need to ensure external layers of security, while having the added responsibility of maintaining the infrastructure if an intrusion occurs. offense. According to studies, despite the development and expansion of the scope, the attacker’s methods still have similarities. Most hackers will illegally exploit the lowest-level vulnerabilities first, through some common and easy-to-implement method. Therefore, experts recommend to prevent ransomware from this initial step through some of the following methods. 1. Secure remote access Remote access is a familiar method often used by attackers, especially through unpatched vulnerabilities of information systems. Accordingly, hackers are constantly scanning the internet, looking for ways to exploit these vulnerabilities to perform attacks. To combat vulnerability scanning, organizations should prioritize patching vulnerabilities first. Along with that, to protect the system, experts recommend that organizations identify remote access systems to their systems by looking up IP addresses. If an attack is suspected, users should block public access to remote desktop protocol services (iRemoteDesktop – RDP), a secure shell that encrypts transmission data (Secure Socket Shell – SSH) ) and file transfer protocol (File Transfer Protocol – FTP). Agencies and organizations need to ensure that systems for remote access such as firewalls, VPN gateways, and email gateways are regularly patched, perform scanning for security holes, and deploy multi-factor authentication. Multi-factor Authentication (MFA) for accounts that are authorized for remote access. Hackers take advantage of security holes to attack the network. Illustration. 2. Email security Many ransomware incidents can start with an email sent to a user. This attack method is gradually becoming popular for hackers to perform blackmail. Experts say it’s safer to prevent unsolicited emails in the first place. The email security system acts as a “fence” to protect the strange messages from the internet and private mailboxes in the intranet system. To avoid email threats, users need to make sure email messages are scanned through a filtering system, and check attachments and links for advanced threats. In addition, account holders should audit or block password-protected documents as hackers often use this method to bypass email data scanning. 3. Keep data backups safe The third most common method for ransomware is to identify the target, encrypt the data, and then completely delete the backups. In addition to the data on the network and the data being used directly, the hacker will search all backups and encrypt them, disabling the data to increase the possibility of ransom from the victim. The victim then has a high probability of paying to buy back these encrypted data. Therefore, individuals, agencies and organizations should have backup plans to ensure the safety of all data. 4. Implement a 3-2-1 . Backup Strategy Without the right protections, backups, and archiving, concurrent copies on the same network are vulnerable to hackers. To avoid network-wide attacks, experts have come up with a safe backup measure for users’ data systems. For all important files, users should store 3 copies, including 1 primary backup for daily use and 2 backup copies. In it, the files will be saved on 2 different media environments to reduce the possibility of mass attacks. These copies must be in place so that data can be accessed and restored easily and quickly in the event of a failure. At the same time, users should save 1 copy outside the work network or home network, in case of force majeure situations due to natural disasters, unexpected disasters.

This hacker organization has received ransom from many victims. This shows that data ransom attacks have become a lucrative business for cybercriminals. Bitcoin is increasingly preferred by criminal organizations Earlier this month, Colonial Pipeline suffered a severe attack that forced the company to shut down nearly all of its fuel system supplying the southeastern states of the United States. The FBI confirmed the crime was DarkSide, a cybercrime organization believed to be located in Eastern Europe. Last week, it was reported that Colonial had agreed to pay $ 5 million to DarkSide (in bitcoin) for the data recovery password. Recently, the CEO of the company confirmed this information. DarkSide operates like a business. This group develops malicious code to crack and steal the target’s data, then trains partners, the partners continue to train the hackers. When hackers use this malicious code to carry out successful missions, DarkSide will receive a percentage of those successful attacks. In March 2021, when it announced a new software that can crack data faster than before, DarkSide even released a press release and invited reporters to interview. Hackers often demand ransom in virtual currency. London-based blockchain analytics firm Elliptic has identified a bitcoin wallet that DarkSide uses to receive ransoms from victims. On May 14, London-based blockchain analytics firm Elliptic said it had identified a bitcoin wallet used by DarkSide to collect ransoms from victims. That same day, Intel 471 security researchers said DarkSide closed after losing access to its servers and when the organization’s virtual currency wallets were empty. According to Elliptic, DarkSide and other affiliates of this organization have collected at least $90 million in bitcoin ransoms, and they receive funds through 47 different digital wallets. “To our knowledge, this analysis includes all payments to DarkSide,” said Tom Robinson, Elliptic co-founder and chief scientist. However, there may be other undetected transactions, so this $90 million figure should be considered the lowest limit.” Also according to Elliptic’s research, DarkSide’s bitcoin wallet was holding $5.3 million in cryptocurrency before it was all withdrawn last week. There are some rumors that these bitcoins have been seized by the US government. Of the $90 million ransom, $15.5 million went to the developers of DarkSide and $74.7 million to affiliates. Much of that is being sent to cryptocurrency exchanges and thereby converted into fiat. Bitcoin is increasingly preferred by criminal organizations as crypto traders do not reveal their identities. However, because the digital ledger that underpins bitcoin is public, researchers can keep track of where these funds are going.

The US has opened an investigation into this cyber attack. Ransomware is a type of malware designed to lock down a system by encrypting data and demanding a ransom from the victim to regain access. Colonial Pipeline asked a cybersecurity company to coordinate with federal law enforcement agencies to investigate this cyberattack. President Joe Biden was briefed on the incident. The White House said Washington will work to help the Colonial Pipeline resume the interrupted fuel supply. This is considered the largest cyber attack on the US energy system Colonial Pipeline is providing nearly half of the fuel for the US east coast. This is considered one of the largest ransomware attacks ever recorded against US energy infrastructure. The shutdown of the largest fuel pipeline network in the United States will cause the price of this item and related products to spike. Colonial Pipeline transports 2.5 million barrels of gasoline and other fuels per day through 8,850 kilometers of pipeline connecting Gulf Coast refineries to the eastern and southern United States. The company also supplies fuel to several major US airports, including Hartsfield Jackson Airport in Atlanta, which has the world’s largest passenger traffic.

The attack was one of the most disruptive digital ransom schemes reported, prompting US lawmakers to call for increased protection of America’s critical energy infrastructure from hackers. Commerce Secretary Gina Raimondo said pipeline repairs were a priority for the Biden administration and Washington was working to avoid more severe fuel supply disruptions by helping Colonial restart the road network. The tube is more than 5,500 miles (8,850 km) long. “Right now it’s an all-in-one effort,” Raimondo said on CBS’s “Face the Nation.” “We are working closely with company, state and local officials to ensure they return to normal operations as quickly as possible and without disruption to supplies,” Colonial said. The pipeline network was attacked – Photo: Reuters Their main fuel lines are still offline, but some of the smaller routes between the terminals and delivery points are now up and running. Neither Raimondo nor the company has given an estimate of a full reboot date. U.S. gasoline futures rose more than 3% to $2,217 a gallon, the highest since May 2018 as trading opened for the week and market participants reacted to pipeline closures. Colonial ships about 2.5 million barrels per day of gasoline and other fuels from refineries on the Gulf Coast to consumers. Its extensive pipeline network serves major US airports including Atlanta’s Hartsfield Jackson Airport, the world’s busiest airport by passenger traffic. A spokeswoman for Charlotte Douglas International Airport said the airport had supplies on hand and was “monitoring the situation closely”. Retail fuel experts including the American Automobile Association say outages lasting several days could have a significant impact on fuel supplies in the region, particularly in the southeastern US. Colonial Pipeline’s fuel tanks – Photo: Reuters While the US government investigation is in its early stages, a former official and three industry sources said the suspected hackers were a professional cybercrime group called DarkSide. DarkSide is one of many gangs that often use malware to extort victims. These groups gain access to private networks, encrypt files with software, and often steal data. They ask for money to decrypt the files and ask for more money to not publish the stolen content. During the Colonial attack, the hackers stole more than 100 gigabytes of data.

Illustration. The breach at Alpharetta, Georgia-based Colonial Pipeline is the latest in a series of cybersecurity incidents confronting the administration of President Joe Biden – as well as a striking reminder that many companies Operators of the nation’s most basic infrastructure, from dams to power plants, are still unprepared to deal with the threats posed by toxic numbers. Here’s a summary of how a criminal gang managed to get into Colonial’s systems and why the tool they use – ransomware – is such a persistent threat. How can a hacker shut down a pipeline? On May 7, Colonial Pipeline said it learned that hackers had infected their computer networks with ransomware, malicious code used to take control of computers and extract payments from victims. The breach affected Colonial’s business network, which it uses for tasks like payroll management and data reporting to regulators. Colonial disabled those systems, but it also turned off the much more sensitive technology running its pipeline operations — a precaution meant to prevent hackers from accessing it if they hadn’t already. These systems monitor air flow for impurities and leaks, control power levels, and perform other automated tasks to keep pipelines running smoothly. What exactly was closed? Colonial shut down its entire main pipeline, more than 5,500 miles long from Houston, Texas, to Linden, New Jersey. The pipeline transports 45% of gasoline, jet fuel and diesel to the US East Coast, according to the company. The short-lived outage sent wholesale gas prices up on financial markets in the affected region, but that rally cooled slightly during trading on May 10. And while some gasoline retailers may try to add a few cents a gallon to the price at the pump, there have been no reports of shortages at suppliers serving those retail points. Market analysts say the pipeline shutdown will need to last through at least the middle of the week to start affecting supply in some parts of the Southeast, and Houston’s refineries won’t start. reduce production unless Colonial shuts down until next week. Overall, the US is stockpiling 235 million barrels of gasoline, enough to supply the whole country for nearly a month. However, retail gasoline prices have risen steadily in recent weeks and any anxiety could accelerate gains as the country approaches Memorial Day weekend, which the industry considers is the beginning of the “summer driving season” in high demand. How bad could this be? It depends on whether the outage turns into a protracted crisis for Colonial’s customers, which include busy airports and US military bases. Some customers can buy fuel from foreign suppliers, but they will face more financial pressure as Colonial’s pipeline network remains offline. Colonial said on May 10 that it has begun reactivating segments of the pipeline and anticipates “significantly restoring operational service by the end of the week”. However, they did not explain what “basically” means and did provide some other details about the attack investigation. What is Ransomware? Ransomware is software that hackers deploy to lock down victims’ data so they can’t access or use it – in the worst case scenario, essentially shutting down an entire company or government office. The hacker then demands a ransom in exchange for providing a digital key to unlock the files. Over the past few years, ransomware has grown from an occasional nuisance to a ubiquitous threat. Victims include the hospital system, the school district and the DC police department, as well as many small businesses. According to the FBI report, ransomware attacks increased by 37% from 2018-2019 and 20% from 2019-2020. According to one report, the pandemic has led to a significant increase in ransomware, with the number of attacks Attacks more than doubled year-on-year, with a particularly large increase in the healthcare sector. The Department of Justice recently launched a task force to explore new solutions to the problem. But in the meantime, the problem continues to get worse as criminal motives grow. Why aren’t pipelines and power plants better protected against ransomware? The private companies that operate much of America’s critical infrastructure — power plants, dams, natural gas pipelines, and other critical facilities — often neglect to implement safety protocols. government-recommended cybersecurity. While protecting against foreign government hackers sometimes requires complex technology that small critical infrastructure operators cannot afford, protecting against ransomware is are not. Use strong passwords, train employees not to click on suspicious links, and require employees to use multi-factor authentication – which involves entering a randomly generated number after entering one’s password – can prevent all but the most advanced types of hacks, including ransomware. Despite years of warnings from government officials and cybersecurity experts, most companies outside of the highly regulated financial sector have not taken many of these steps. And even organizations that try to take cybersecurity seriously can be covered by small holes. A long-neglected office worker or old computer in a closet is often the weak link that opens an organization’s doors to hackers. With so many companies leaving themselves with easy targets, many cybercriminals have started using ransomware to make money. By choosing victims they know there can be no downtime, these criminals virtually guarantee themselves an easy profit. Additionally, many ransomware operators have begun exploiting a secondary source of profit: reselling stolen data on the dark web, where sensitive personal information can fetch huge sums. Between victims and hackers is a burgeoning crypto ecosystem, consisting of unscrupulous payment facilitators ready to handle ransom transactions and rock wall law enforcement. How often do victims pay the ransom? The US government discourages ransomware victims from paying attackers to regain access to their data. While some ransomware operators honor their agreements and unlock victims’ files to foster trust and increase their chances of receiving a future ransom, many of these criminals simply take the money and disappear. Paying the ransom also encourages cybercriminals to continue their attacks. Anne Neuberger, deputy national security adviser for cyber and emerging technologies, said: “We recognize that victims of cyberattacks often face very difficult situations and they must balance the cost-benefit when there is no other option about paying the ransom,” – told reporters on May 10 In the US, it is not illegal to pay a ransom to regain access to locked data. However, it is illegal to pay ransoms to entities on the Treasury’s sanctions list, and the Treasury Department has warned companies that assist ransomware victims to conduct due diligence on hackers. before making payment arrangements. DarkSide, what is the group behind the attack? The FBI has confirmed that the Colonial Pipeline hack was the work of the DarkSide ransomware gang. This group is a relatively newcomer to the ransomware ecosystem, but they are already well known for their professionalism, patience, and large ransom demand. Security firm Cybereason wrote in a report last month: “The team has a phone number and even a help desk to facilitate negotiations with the victim, and they are putting a lot of effort into gathering information. about their victims – not just technical information about their environment, but more general information about the company itself, like the size of the organization and estimated revenue.” DarkSide is based in Russia, but so far the US has said it does not believe the hackers acted on behalf of the government of Russian President Vladimir Putin. Mr. Biden said on the afternoon of May 10: “To date, there is no evidence … from our intelligence people that Russia is involved. However, he added: “There is evidence that the actor’s ransomware is in Russia. They have some responsibility to deal with this.” Like other ransomware gangs, DarkSide operates on a so-called “ransomware-as-a-service” model, in which it provides code to less sophisticated hackers and helps them carry out attacks enter in exchange for their share of the profits. After being closely watched by the Colonial Pipeline attack, DarkSide seems to be rethinking this model. On May 10, a purported statement from the DarkSide hackers announced the group’s intention to scrutinize the partners’ planned attacks in the future to “avoid social consequences.” festival”. “Our goal is to make money, and not create problems for society.” What is the US government doing with this attack? The White House has established a working group that includes the Department of Homeland Security’s Cybersecurity and Infrastructure Agency; The Department of Transport’s Pipeline and Hazardous Materials Safety Administration; FBI; and the Departments of Energy, Treasury and Defense. These agencies are working together to prepare for various scenarios should the pipeline remain shut, including planning for shortages and higher gas prices. In addition, the Department of Transportation waives regulations that limit the driving time without rest of fuel trucks in 17 states and Washington DC. That could make it easier to deliver to customers due to Colonial’s closure.