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Imagine you could gain access to any Fortune 100 company for $10 or less, or even for free. Terrifying thought, isn't it? Or exciting, depending on which side of the cybersecurity barricade you are on. Well, that's basically the state of things today. Welcome to the infostealer garden of low-hanging fruit. Over the last few years, the problem has grown bigger and bigger, and only now are we slowly learning its full destructive potential. In this article, we will describe how the entire cybercriminal ecosystem operates, the ways various threat actors exploit data originating from it, and most importantly, what you can do about it. Let's start with what infostealer malware actually is. As the name suggests, it's malware that... steals data. Depending on the specific type, the information it extracts might differ slightly, but most will try to extract the following: Cryptocurrency wallets Bank account information and saved credit card details Saved passwords from various apps Bro...

A threat actor that was previously observed using an open-source network mapping tool has greatly expanded their operations to infect over 1,500 victims. Sysdig, which is tracking the cluster under the name CRYSTALRAY , said the activities have witnessed a tenfold surge, adding it includes "mass scanning, exploiting multiple vulnerabilities, and placing backdoors using multiple [open-source software] security tools." The primary objective of the attacks is to harvest and sell credentials, deploy cryptocurrency miners, and maintain persistence in victim environments. A majority of the infections are concentrated in the U.S., China, Singapore, Russia, France, Japan, and India, among others. Prominent among the open-source programs used by the threat actor is SSH-Snake , which was first released in January 2024. It has been described as a tool to carry out automatic network traversal using SSH private keys discovered on systems. The abuse of the software by CRYSTALRAY was ...

Retail banking institutions in Singapore have three months to phase out the use of one-time passwords (OTPs) for authentication purposes when signing into online accounts to mitigate the risk of phishing attacks. The decision was announced by the Monetary Authority of Singapore (MAS) and the Association of Banks in Singapore (ABS) on July 9, 2024. "Customers who have activated their digital token on their mobile device will have to use their digital tokens for bank account logins via the browser or the mobile banking app," the MAS said . "The digital token will authenticate customers' login without the need for an OTP that scammers can steal, or trick customers into disclosing." The MAS is also urging customers to activate their digital tokens to safeguard against attacks that are designed to steal credentials and hijack their accounts for conducting financial fraud. "This measure provides customers with further protection against unauthorized access to ...

Cybersecurity researchers have shed light on a new version of a ransomware strain called HardBit that comes packaged with new obfuscation techniques to deter analysis efforts. "Unlike previous versions, HardBit Ransomware group enhanced the version 4.0 with passphrase protection," Cybereason researchers Kotaro Ogino and Koshi Oyama said in an analysis. "The passphrase needs to be provided during the runtime in order for the ransomware to be executed properly. Additional obfuscation hinders security researchers from analyzing the malware." HardBit, which first emerged in October 2022, is a financially motivated threat actor that, similar to other ransomware groups, operates with an aim to generate illicit revenues via double extortion tactics. What makes the threat group stand out is that it does not operate a data leak site, and instead pressurizes victims to pay up by threatening to conduct additional attacks in the future. Its primary mode of communication ...

American telecom service provider AT&T has confirmed that threat actors managed to access data belonging to "nearly all" of its wireless customers as well as customers of mobile virtual network operators (MVNOs) using AT&T's wireless network. "Threat actors unlawfully accessed an AT&T workspace on a third-party cloud platform and, between April 14 and April 25, 2024, exfiltrated files containing AT&T records of customer call and text interactions that occurred between approximately May 1 and October 31, 2022, as well as on January 2, 2023," it said . This comprises telephone numbers with which an AT&T or MVNO wireless number interacted – including telephone numbers of AT&T landline customers and customers of other carriers, counts of those interactions, and aggregate call duration for a day or month. A subset of these records also contained one or more cell site identification numbers , potentially allowing the threat actors to triang...

Cybersecurity researchers have shed light on a short-lived DarkGate malware campaign that leveraged Samba file shares to initiate the infections. Palo Alto Networks Unit 42 said the activity spanned the months of March and April 2024, with the infection chains using servers running public-facing Samba file shares hosting Visual Basic Script (VBS) and JavaScript files. Targets included North America, Europe, and parts of Asia. "This was a relatively short-lived campaign that illustrates how threat actors can creatively abuse legitimate tools and services to distribute their malware," security researchers Vishwa Thothathri, Yijie Sui, Anmol Maurya, Uday Pratap Singh, and Brad Duncan said . DarkGate, which first emerged in 2018, has evolved into a malware-as-a-service (MaaS) offering used by a tightly controlled number of customers. It comes with capabilities to remotely control compromised hosts, execute code, mine cryptocurrency, launch reverse shells, and drop addit...

Two Russian-born Australian citizens have been arrested and charged in the country for spying on behalf of Russia as part of a "complex" law enforcement operation codenamed BURGAZADA . This includes a 40-year-old woman, an Australian Defence Force (ADF) Army Private, and her husband, a 62-year-old self-employed laborer. Media reports have identified them as Kira Korolev and Igor Korolev, respectively, noting that they had been in Australia for over a decade. The married couple were arrested at their home in the Brisbane suburb of Everton Park on July 11, 2024, the Australian Federal Police (AFP) said in a statement. They have been charged with one count each of preparing for an espionage offense, which carries a maximum penalty of 15 years' imprisonment. "It is the first time an espionage offense has been laid in Australia since new laws were introduced by the Commonwealth in 2018," the AFP said . The federal law enforcement agency has alleged the pair ...

In today's digital age, passwords serve as the keys to our most sensitive information, from social media accounts to banking and business systems. This immense power brings with it significant responsibility—and vulnerability. Most people don't realize their credentials have been compromised until the damage is done. Imagine waking up to drained bank accounts, stolen identities, or a company's reputation in tatters. This isn't just a hypothetical scenario – it's the harsh reality faced by countless individuals and organizations every day. Recent data reveals that compromised credentials are the single biggest attack vector in 2024. That means stolen passwords, not exotic malware or zero-day exploits, are the most common way hackers breach systems and wreak havoc. To help you navigate this critical issue, we invite you to join our exclusive webinar, " Compromised Credentials in 2024: What to Know About the World's #1 Attack Vector. " What You...

A critical security issue has been disclosed in the Exim mail transfer agent that could enable threat actors to deliver malicious attachments to target users' inboxes. The vulnerability , tracked as CVE-2024-39929, has a CVSS score of 9.1 out of 10.0. It has been addressed in version 4.98. "Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users," according to a description shared on the U.S. National Vulnerability Database (NVD). Exim is a free, mail transfer agent that's used in hosts that are running Unix or Unix-like operating systems. It was first released in 1995 for use at the University of Cambridge.  Attack surface management firm Censys said 4,830,719 of the 6,540,044 public-facing SMTP mail servers are running Exim. As of July 12, 2024, 1,563,085 internet-accessible...