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As work ebbs with the typical end-of-year slowdown, now is a good time to review user roles and privileges and remove anyone who shouldn't have access as well as trim unnecessary permissions. In addition to saving some unnecessary license fees, a clean user inventory significantly enhances the security of your SaaS applications. From reducing risk to protecting against data leakage, here is how you can start the new year with a clean user list.  How Offboarded Users  Still  Have Access to Your Apps When employees leave a company, they trigger a series of changes to backend systems in their wake. First, they are removed from the company's identity provider (IdP), which kicks off an automated workflow that deactivates their email and removes access to all internal systems. When enterprises use an SSO (single sign-on), these former employees lose access to any online properties – including SaaS applications – that require SSO for login.  However, that doesn't mean that former employee

A new phishing attack has been observed leveraging a Russian-language Microsoft Word document to deliver malware capable of harvesting sensitive information from compromised Windows hosts. The activity has been attributed to a threat actor called Konni , which is assessed to share overlaps with a North Korean cluster tracked as Kimsuky (aka APT43). "This campaign relies on a remote access trojan (RAT) capable of extracting information and executing commands on compromised devices," Fortinet FortiGuard Labs researcher Cara Lin  said  in an analysis published this week. The  cyber espionage   group  is notable for its  targeting of Russia , with the modus operandi involving the use of spear-phishing emails and malicious documents as entry points for their attacks. Recent attacks documented by Knowsec and ThreatMon have leveraged the  WinRAR vulnerability  (CVE-2023-38831) as well as obfuscated Visual Basic scripts to drop  Konni RAT  and a Windows Batch script capable of

As work ebbs with the typical end-of-year slowdown, now is a good time to review user roles and privileges and remove anyone who shouldn't have access as well as trim unnecessary permissions. In addition to saving some unnecessary license fees, a clean user inventory significantly enhances the security of your SaaS applications. From reducing risk to protecting against data leakage, here is how you can start the new year with a clean user list.  How Offboarded Users  Still  Have Access to Your Apps When employees leave a company, they trigger a series of changes to backend systems in their wake. First, they are removed from the company's identity provider (IdP), which kicks off an automated workflow that deactivates their email and removes access to all internal systems. When enterprises use an SSO (single sign-on), these former employees lose access to any online properties – including SaaS applications – that require SSO for login.  However, that doesn't mean that former employee

Phishing attacks are steadily becoming more sophisticated, with cybercriminals investing in new ways of deceiving victims into revealing sensitive information or installing malicious software. One of the latest trends in phishing is the use of QR codes, CAPTCHAs, and steganography. See how they are carried out and learn to detect them. Quishing Quishing, a phishing technique resulting from the combination of "QR" and "phishing," has become a popular weapon for cybercriminals in 2023. By concealing malicious links within QR codes, attackers can evade traditional spam filters, which are primarily geared towards identifying text-based phishing attempts. The inability of many security tools to decipher the content of QR codes further makes this method a go-to choice for cybercriminals. An email containing a QR code with a malicious link Analyzing a QR code with an embedded malicious link in a safe environment is easy with  ANY.RUN : Simply open  this task  in th

An updated version of a sophisticated backdoor framework called  MATA  has been used in attacks aimed at over a dozen Eastern European companies in the oil and gas sector and defense industry as part of a cyber espionage operation that took place between August 2022 and May 2023. "The actors behind the attack used spear-phishing mails to target several victims, some were infected with Windows executable malware by downloading files through an internet browser," Kaspersky  said  in a new exhaustive report published this week. "Each phishing document contains an external link to fetch a remote page containing a  CVE-2021-26411  exploit." CVE-2021-26411 (CVSS score: 8.8) refers to a  memory corruption vulnerability  in Internet Explorer that could be triggered to execute arbitrary code by tricking a victim into visiting a specially crafted site. It was previously exploited by the Lazarus Group in early 2021 to target security researchers. The cross-platform MATA f

Taiwanese networking equipment manufacturer D-Link has confirmed a data breach that led to the exposure of what it said is "low-sensitivity and semi-public information." "The data was confirmed not from the cloud but likely originated from an old D-View 6 system, which reached its end of life as early as 2015," the company  said . "The data was used for registration purposes back then. So far, no evidence suggests the archaic data contained any user IDs or financial information." The development comes more than two weeks after an unauthorized party alleged to have stolen the personal data of many government officials in Taiwan as well as the source code for D-Link's D-View network management software in a post shared on BreachForums on October 1, 2023. D-Link, which roped in cybersecurity firm Trend Micro to probe the incident, cited numerous inaccuracies and exaggerations, stating that the breach led to the compromise of roughly 700 "outdate

Pro-Russian hacking groups have exploited a recently disclosed security vulnerability in the WinRAR archiving utility as part of a phishing campaign designed to harvest credentials from compromised systems. "The attack involves the use of malicious archive files that exploit the recently discovered vulnerability affecting the WinRAR compression software versions prior to 6.23 and traced as CVE-2023-38831," Cluster25  said  in a report published last week. The archive contains a booby-trapped PDF file that, when clicked, causes a Windows Batch script to be executed, which launches PowerShell commands to open a reverse shell that gives the attacker remote access to the targeted host. Also deployed is a PowerShell script that steals data, including login credentials, from the Google Chrome and Microsoft Edge browsers. The captured information is exfiltrated via a legitimate web service webhook[.]site. CVE-2023-38831 refers to a  high-severity flaw  in WinRAR that allows at

Ukrainian military entities are the target of a phishing campaign that leverages drone manuals as lures to deliver a Go-based open-source post-exploitation toolkit called Merlin. "Since drones or Unmanned Aerial Vehicles (UAVs) have been an integral tool used by the Ukrainian military, malware-laced lure files themed as UAVs service manuals have begun to surface," Securonix researchers Den Iuzvyk, Tim Peck, and Oleg Kolesnikov said in a report shared with The Hacker News. The cybersecurity company is tracking the campaign under the name  STARK#VORTEX . The starting point of the attack is a Microsoft Compiled HTML Help (CHM) file that, when opened, runs malicious JavaScript embedded inside one of the HTML pages to execute PowerShell code designed to contact a remote server to fetch an obfuscated binary. The Windows-based payload is decoded to extract the  Merlin Agent , which, in turn, is configured to communicate with a command-and-control (C2) server for post-exploita

Software development company Retool has disclosed that the accounts of 27 of its cloud customers were compromised following a targeted and SMS-based social engineering attack. The San Francisco-based firm blamed a  Google Account cloud synchronization feature  recently introduced in April 2023 for making the breach worse, calling it a "dark pattern." "The fact that Google Authenticator syncs to the cloud is a novel attack vector," Snir Kodesh, Retool's head of engineering,  said . "What we had originally implemented was multi-factor authentication. But through this Google update, what was previously multi-factor-authentication had silently (to administrators) become single-factor-authentication." Retool said that the incident, which took place on August 27, 2023, did not allow unauthorized access to on-prem or managed accounts. It also coincided with the company migrating their logins to Okta. It all started with an SMS phishing attack aimed at i

The threat actors behind RedLine and Vidar information stealers have been observed pivoting to ransomware through phishing campaigns that spread initial payloads signed with Extended Validation ( EV ) code signing certificates. "This suggests that the threat actors are streamlining operations by making their techniques multipurpose," Trend Micro researchers  said  in a new analysis published this week. In the incident investigated by the cybersecurity company, an unnamed victim is said to have first received a piece of info stealer malware with EV code signing certificates, followed by ransomware using the same delivery technique. In the past,  QakBot infections  have leveraged  samples signed with valid code signing certificates  to bypass security protections. The attacks start with phishing emails that employ well-worn lures to trick victims into running malicious attachments that masquerade as PDF or JPG images but are actually executables that jump-start the comprom

Microsoft is warning of a new phishing campaign undertaken by an initial access broker that involves using Teams messages as lures to infiltrate corporate networks. The tech giant's Threat Intelligence team is tracking the cluster under the name  Storm-0324 , which is also known by the monikers TA543 and Sagrid. "Beginning in July 2023, Storm-0324 was observed distributing payloads using an open-source tool to send phishing lures through Microsoft Teams chats," the company  said , adding the development marks a shift from using email-based initial infection vectors for initial access. Storm-0324 operates in the cybercriminal economy as a payload distributor, offering a service that allows for the propagation of  various   payloads  using evasive infection chains. This includes a mix of downloaders, banking trojans, ransomware, and modular toolkits such as Nymaim, Gozi, TrickBot, IcedID, Gootkit, Dridex, Sage, GandCrab, and JSSLoader. Attack sequences mounted by the a

A sophisticated phishing campaign is using a Microsoft Word document lure to distribute a trifecta of threats, namely Agent Tesla, OriginBotnet, and RedLine Clipper, to gather a wide range of information from compromised Windows machines. "A phishing email delivers the Word document as an attachment, presenting a deliberately blurred image and a counterfeit reCAPTCHA to lure the recipient into clicking on it," Fortinet FortiGuard Labs researcher Cara Lin  said . Clicking on the image leads to the delivery of a loader from a remote server that, in turn, is designed to distribute OriginBotnet for keylogging and password recovery, RedLine Clipper for cryptocurrency theft, and Agent Tesla for harvesting sensitive information. The loader, written in .NET, employs a technique called binary padding by adding null bytes to increase the file's size to 400 MB in an attempt to evade detection by security software. The activation of the loader triggers a multi-stage process to

A new phishing attack is leveraging Facebook Messenger to propagate messages with malicious attachments from a "swarm of fake and hijacked personal accounts" with the ultimate goal of taking over the targets' Business accounts. "Originating yet again from a Vietnamese-based group, this campaign uses a tiny compressed file attachment that packs a powerful Python-based stealer dropped in a multi-stage process full of simple yet effective obfuscation methods," Guardio Labs researcher Oleg Zaytsev  said  in an analysis published over the weekend. In these attacks, dubbed MrTonyScam, potential victims are sent messages that entice them into clicking on the RAR and ZIP archive attachments, leading to the deployment of a dropper that fetches the next-stage from a GitHub or GitLab repository. This payload is another archive file that contains a CMD file, which, in turn, harbors an obfuscated Python-based stealer to exfiltrate all cookies and login credentials from d

The Iranian threat actor tracked as APT34 has been linked to a new phishing attack that leads to the deployment of a variant of a backdoor called  SideTwist . "APT34 has a high level of attack technology, can design different intrusion methods for different types of targets, and has supply chain attack capability," NSFOCUS Security Labs  said  in a report published last week. APT34, also known by the names Cobalt Gypsy, Hazel Sandstorm (formerly Europium), Helix Kitten, and OilRig, has a  track record  of targeting telecommunications, government, defense, oil and financial services verticals in the Middle East since at least 2014 via spear-phishing lures that culminate in the deployment of various backdoors. One of the key traits of the hacking outfit is its ability to create new and updated tools to minimize the odds of detection and gain a foothold on compromised hosts for extended periods of time. SideTwist was  first documented  as used by APT34 in April 2021, with Check Poin

A new phishing attack likely targeting civil society groups in South Korea has led to the discovery of a novel remote access trojan called  SuperBear . The intrusion singled out an unnamed activist, who was contacted in late August 2023 and received a malicious LNK file from an address impersonating a member of the organization, non-profit entity Interlabs  said  in a new report. The LNK file, upon execution, launches a PowerShell command to execute a Visual Basic script that, in turn, fetches the next-stage payloads from a legitimate but compromised WordPress website. This includes the Autoit3.exe binary ("solmir.pdb") and an AutoIt script ("solmir_1.pdb") that's launched using the former. The AutoIt script, for its part, performs process injection using a  process hollowing technique , in which malicious code is inserted into a process that's in a suspended state. In this case, an instance of Explorer.exe is spawned to inject a never-before-seen RAT referred to as SuperBear th

A new financially motivated operation is leveraging a malicious Telegram bot to help threat actors scam their victims. Dubbed  Telekopye , a portmanteau of Telegram and kopye (meaning "spear" in Russian), the toolkit functions as an  automated means  to create a phishing web page from a premade template and send the URL to potential victims, codenamed Mammoths by the criminals. "This toolkit is implemented as a Telegram bot that, when activated, provides several easy-to-navigate menus in the form of clickable buttons that can accommodate many scammers at once," ESET researcher Radek Jizba  said  in a report shared with The Hacker News. The exact origins of the threat actors, dubbed Neanderthals, are unclear, but evidence points to Russia as the country of origin of the toolkit's authors and users, owing to the use of Russian SMS templates and the fact that a majority of the targeted online marketplaces are popular in the country. Multiple versions of Teleko

Public Wi-Fi, which has long since become the norm, poses threats to not only individual users but also businesses. With the rise of remote work, people can now work from virtually anywhere: a cafe close to home, a hotel in a different city, or even while waiting for a plane at the airport. Next, let's explore the risks of connecting to public Wi-Fi, both for you personally and for businesses. According to the  Forbes Advisor  the majority of people (56%) connect to public Wi-Fi networks that don't require a password. This convenience comes at a price, and many are unaware that attackers can steal card details, passwords, and other sensitive information. Man-in-the-Middle (MITM) Attacks:  This is one of the most common threats on public Wi-Fi. In an MITM attack, the hacker secretly intercepts and possibly alters the communication between two parties. The user believes they are directly communicating with a website, email server, or another user, but the hacker is relaying t