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5 Ways to Mitigate Your New Insider Threats in the Great Resignation

5 Ways to Mitigate Your New Insider Threats in the Great Resignation
September 15, 2022The Hacker News
Companies are in the midst of an employee  "turnover tsunami"  with no signs of a slowdown.  According to Fortune Magazine,  40% of the U.S. is considering quitting their jobs. This trend – coined the great resignation - creates instability in organizations. High employee turnover increases security risks, and companies are more vulnerable to attacks from human factors worldwide.  At  Davos 2022 , statistics connect the turmoil of the great resignation to the rise of new insider threats. Security teams are feeling the impact. It's even harder to keep up with your employee security. Companies need a fresh approach to close the gaps and prevent attacks. This article will examine what your security teams must do within the new organizational dynamics to quickly and effectively address unique challenges. Handling Your New Insider Threats  Implementing a successful security awareness program is more challenging than ever for your security team—the new blood coming in cause

New EvilProxy Phishing Service Allowing Cybercriminals to Bypass 2-Factor Security

New EvilProxy Phishing Service Allowing Cybercriminals to Bypass 2-Factor Security
September 06, 2022Ravie Lakshmanan
A new phishing-as-a-service (PhaaS) toolkit dubbed EvilProxy is being advertised on the criminal underground as a means for threat actors to bypass two-factor authentication (2FA) protections employed against online services. "EvilProxy actors are using reverse proxy and cookie injection methods to bypass 2FA authentication – proxifying victim's session," Resecurity researchers  said  in a Monday write-up. The platform generates phishing links that are nothing but cloned pages designed to compromise user accounts associated with Apple iCloud, Facebook, GoDaddy, GitHub, Google, Dropbox, Instagram, Microsoft, NPM, PyPI, RubyGems, Twitter, Yahoo, and Yandex, among others. EvilProxy is similar to adversary-in-the-middle ( AiTM ) attacks in that users interact with a malicious proxy server that acts as a go-between for the target website, covertly harvesting the credentials and 2FA passcodes entered in the login pages. It's offered on a subscription basis per service

JuiceLedger Hackers Behind the Recent Phishing Attacks Against PyPI Users

JuiceLedger Hackers Behind the Recent Phishing Attacks Against PyPI Users
September 02, 2022Ravie Lakshmanan
More details have emerged about the operators behind the  first-known phishing campaign  specifically aimed at the Python Package Index (PyPI), the official third-party software repository for the programming language. Connecting it to a threat actor tracked as  JuiceLedger , cybersecurity firm SentinelOne, along with Checkmarx, described the group as a relatively new entity that surfaced in early 2022. Initial "low-key" campaigns are said to have involved the use of rogue Python installer applications to deliver a .NET-based malware called JuiceStealer that's engineered to siphon passwords and other sensitive data from victims' web browsers. The attacks received a significant facelift last month when the JuiceLedger actors  targeted PyPi package contributors  in a phishing campaign, resulting in the compromise of three packages with malware. "The supply chain attack on PyPI package contributors appears to be an escalation of a campaign begun earlier in th

Twilio Breach Also Compromised Authy Two-Factor Accounts of Some Users

Twilio Breach Also Compromised Authy Two-Factor Accounts of Some Users
August 29, 2022Ravie Lakshmanan
Twilio, which earlier this month became a  sophisticated phishing attack , disclosed last week that the threat actors also managed to gain access to the accounts of 93 individual users of its Authy two-factor authentication (2FA) service. The communication tools company  said  the unauthorized access made it possible for the adversary to register additional devices to those accounts. It has since identified and removed the illegitimately added devices from the impacted accounts. Authy, acquired by Twilio in February 2015, allows  safeguarding online accounts  with a second security layer to prevent account takeover attacks. It's estimated to have nearly 75 million users. Twilio further noted its investigation as of August 24, 2022, turned up 163 affected customers, up from 125 it reported on August 10, whose accounts it said were hacked for a limited period of time. Besides Twilio, the sprawling campaign, dubbed  0ktapus  by Group-IB, is believed to have struck 136 companies,

Researchers Warn of AiTM Attack Targeting Google G-Suite Enterprise Users

Researchers Warn of AiTM Attack Targeting Google G-Suite Enterprise Users
August 24, 2022Ravie Lakshmanan
The threat actors behind a large-scale adversary-in-the-middle (AiTM)  phishing campaign  targeting enterprise users of Microsoft email services have also set their sights on Google Workspace users. "This campaign specifically targeted chief executives and other senior members of various organizations which use [Google Workspace]," Zscaler researchers Sudeep Singh and Jagadeeswar Ramanukolanu  detailed  in a report published this month. The AiTM phishing attacks are said to have commenced in mid-July 2022, following a similar modus operandi as that of a  social engineering campaign  designed to siphon users' Microsoft credentials and even bypass multi-factor authentication. The low-volume Gmail AiTM phishing campaign also entails using the compromised emails of chief executives to conduct further social engineering, with the attacks also utilizing several compromised domains as an intermediate URL redirector to take the victims to the final landing page. Attack cha

Microsoft Warns About Phishing Attacks by Russia-linked Hackers

Microsoft Warns About Phishing Attacks by Russia-linked Hackers
August 16, 2022Ravie Lakshmanan
Microsoft on Monday revealed it took steps to disrupt phishing operations undertaken by a "highly persistent threat actor" whose objectives align closely with Russian state interests. The company is tracking the espionage-oriented activity cluster under its chemical element-themed moniker  SEABORGIUM , which it said overlaps with a hacking group also known as  Callisto ,  COLDRIVER , and TA446. "SEABORGIUM intrusions have also been linked to hack-and-leak campaigns, where stolen and leaked data is used to shape narratives in targeted countries," Microsoft's threat hunting teams  said . "Its campaigns involve persistent phishing and credential theft campaigns leading to intrusions and data theft." Attacks launched by the adversarial collective are known to target the same organizations using consistent methodologies applied over long periods of time, enabling it to infiltrate the victims' social networks through a combination of impersonation,

Nearly 1,900 Signal Messenger Accounts Potentially Compromised in Twilio Hack

Nearly 1,900 Signal Messenger Accounts Potentially Compromised in Twilio Hack
August 16, 2022Ravie Lakshmanan
Popular end-to-end encrypted messaging service Signal on Monday disclosed the cyberattack aimed at Twilio earlier this month may have exposed the phone numbers of roughly 1,900 users. "For about 1,900 users, an attacker could have attempted to re-register their number to another device or learned that their number was registered to Signal," the company  said . "All users can rest assured that their message history, contact lists, profile information, whom they'd blocked, and other personal data remain private and secure and were not affected." Signal, which uses Twilio to send SMS verification codes to users registering with the app, said it's in the process of alerting the affected users directly and prompting them to re-register the service on their devices. The development comes less than a week after Twilio  revealed  that data associated with about 125 customer accounts were accessed by malicious actors through a phishing attack that duped the comp

Conti Cybercrime Cartel Using 'BazarCall' Phishing Attacks as Initial Attack Vector

Conti Cybercrime Cartel Using 'BazarCall' Phishing Attacks as Initial Attack Vector
August 11, 2022Ravie Lakshmanan
A trio of offshoots from the notorious Conti cybercrime cartel have resorted to the technique of call-back phishing as an initial access vector to breach targeted networks. "Three autonomous threat groups have since adopted and independently developed their own targeted phishing tactics derived from the call back phishing methodology," cybersecurity firm AdvIntel  said  in a Wednesday report. These targeted campaigns "substantially increased" attacks against entities in finance, technology, legal, and insurance sectors, the company added. The actors in question include Silent Ransom, Quantum, and Roy/Zeon, all of which split from Conti after the ransomware-as-a-service (RaaS) cartel  orchestrated its shutdown  in May 2022 following its public support for Russia in the ongoing Russo-Ukrainian conflict. The advanced social engineering tactic, also called  BazaCall  (aka BazarCall), came under the spotlight in 2020/2021 when it was put to use by operators of the

Twilio Suffers Data Breach After Employees Fall Victim to SMS Phishing Attack

Twilio Suffers Data Breach After Employees Fall Victim to SMS Phishing Attack
August 09, 2022Ravie Lakshmanan
Customer engagement platform Twilio on Monday disclosed that a "sophisticated" threat actor gained "unauthorized access" using an SMS-based phishing campaign aimed at its staff to gain information on a "limited number" of accounts. The social-engineering attack was bent on stealing employee credentials, the company said, calling the as-yet-unidentified adversary "well-organized" and "methodical in their actions." The incident came to light on August 4. "This broad based attack against our employee base succeeded in fooling some employees into providing their credentials," it  said  in a notice. "The attackers then used the stolen credentials to gain access to some of our internal systems, where they were able to access certain customer data." The communications giant has  268,000 active customer accounts , and counts companies like Airbnb, Box, Dell, DoorDash, eBay, Glassdoor, Lyft, Salesforce, Stripe, Twitter,

Researchers Warns of Large-Scale AiTM Attacks Targeting Enterprise Users

Researchers Warns of Large-Scale AiTM Attacks Targeting Enterprise Users
August 03, 2022Ravie Lakshmanan
A new, large-scale phishing campaign has been observed using adversary-in-the-middle (AitM) techniques to get around security protections and compromise enterprise email accounts. "It uses an adversary-in-the-middle (AitM) attack technique capable of bypassing multi-factor authentication," Zscaler researchers Sudeep Singh and Jagadeeswar Ramanukolanu  said  in a Tuesday report. "The campaign is specifically designed to reach end users in enterprises that use Microsoft's email services." Prominent targets include fintech, lending, insurance, energy, manufacturing, and federal credit union verticals located in the U.S., U.K., New Zealand, and Australia. This is not the first time such a phishing attack has come to light. Last month, Microsoft  disclosed  that over 10,000 organizations had been targeted since September 2021 by means of AitM techniques to breach accounts secured with multi-factor authentication (MFA). The ongoing campaign, effective June 2022,

Researchers Warn of Increase in Phishing Attacks Using Decentralized IPFS Network

Researchers Warn of Increase in Phishing Attacks Using Decentralized IPFS Network
July 29, 2022Ravie Lakshmanan
The decentralized file system solution known as IPFS is becoming the new "hotbed" for hosting phishing sites, researchers have warned. Cybersecurity firm Trustwave SpiderLabs, which disclosed specifics of the spam campaigns, said it identified no less than 3,000 emails containing IPFS phishing URLs as an attack vector in the last three months. IPFS , short for InterPlanetary File System, is a peer-to-peer (P2P) network to store and share files and data using cryptographic hashes, instead of URLs or filenames, as is observed in a traditional client-server approach. Each hash forms the basis for a unique content identifier ( CID ). The idea is to create a resilient distributed file system that allows data to be stored across multiple computers. This would allow information to be accessed without having to rely on third parties such as cloud storage providers, effectively making it resistant to censorship. "Taking down phishing content stored on IPFS can be difficult

Hackers Use Evilnum Malware to Target Cryptocurrency and Commodities Platforms

Hackers Use Evilnum Malware to Target Cryptocurrency and Commodities Platforms
July 21, 2022Ravie Lakshmanan
The advanced persistent threat (APT) actor tracked as Evilnum is once again exhibiting signs of renewed activity aimed at European financial and investment entities. "Evilnum is a backdoor that can be used for data theft or to load additional payloads," enterprise security firm Proofpoint  said  in a report shared with The Hacker News. "The malware includes multiple interesting components to evade detection and modify infection paths based on identified antivirus software." Targets include organizations with operations supporting foreign exchanges, cryptocurrency, and decentralized finance (DeFi). The latest spate of attacks are said to have commenced in late 2021. The findings also dovetail with a report from Zscaler last month that  detailed  low-volume targeted attack campaigns launched against companies in Europe and the U.K. Active since 2018,  Evilnum  is tracked by the wider cybersecurity community using the names TA4563 and DeathStalker, with infection

Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations
July 13, 2022Ravie Lakshmanan
Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365's authentication process even on accounts secured with multi-factor authentication (MFA). "The attackers then used the stolen credentials and session cookies to access affected users' mailboxes and perform follow-on business email compromise (BEC) campaigns against other targets," the company's cybersecurity teams  reported . The intrusions entailed setting up adversary-in-the-middle (AitM) phishing sites, wherein the attacker deploys a proxy server between a potential victim and the targeted website so that recipients of a phishing email are redirected to lookalike landing pages designed to capture credentials and MFA information. "The phishing page has two different Transport Layer Security (TLS) sessions — one with the target and another with the actual website the target wants to access," the company

Ukrainian Authorities Arrested Phishing Gang That Stole 100 Million UAH

Ukrainian Authorities Arrested Phishing Gang That Stole 100 Million UAH
July 04, 2022Ravie Lakshmanan
The Cyber Police of Ukraine last week disclosed that it apprehended nine members of a criminal gang that embezzled 100 million hryvnias via hundreds of phishing sites that claimed to offer financial assistance to Ukrainian citizens as part of a campaign aimed at capitalizing on the ongoing conflict. "Criminals created more than 400 phishing links to obtain bank card data of citizens and appropriate money from their accounts," the agency  said  in a press statement last week. "The perpetrators may face up to 15 years behind bars." The law enforcement operation culminated in the seizure of computer equipment, mobile phones, bank cards as well as the criminal proceeds illicitly obtained through the scheme. Some of the rogue domains registered by the actors included ross0.yolasite[.]com, foundationua[.]com, ua-compensation[.]buzz, www.bless12[.]store, help-compensation[.]xyz, newsukraine10.yolasite[.]com, and euro24dopomoga0.yolasite[.]com, among others. The mali

Researchers Warn of 'Matanbuchus' Malware Campaign Dropping Cobalt Strike Beacons

Researchers Warn of 'Matanbuchus' Malware Campaign Dropping Cobalt Strike Beacons
June 27, 2022Ravie Lakshmanan
A malware-as-a-service (Maas) dubbed  Matanbuchus  has been observed spreading through phishing campaigns, ultimately dropping the Cobalt Strike post-exploitation framework on compromised machines. Matanbuchus, like other  malware loaders  such as  BazarLoader ,  Bumblebee , and  Colibri , is engineered to download and execute second-stage executables from command-and-control (C&C) servers on infected systems without detection. Available on Russian-speaking cybercrime forums for a price of $2,500 since February 2021, the malware is equipped with capabilities to launch .EXE and .DLL files in memory and run arbitrary PowerShell commands. The findings, released by threat intelligence firm Cyble last week, document the latest infection chain associated with the loader, which is linked to a threat actor who goes by the online moniker BelialDemon. "If we look historically, BelialDemon has been involved in the development of malware loaders," Unit 42 researchers Jeff White

Russian Hackers Exploiting Microsoft Follina Vulnerability Against Ukraine

Russian Hackers Exploiting Microsoft Follina Vulnerability Against Ukraine
June 22, 2022Ravie Lakshmanan
The Computer Emergency Response Team of Ukraine (CERT-UA) has  cautioned  of a new set of spear-phishing attacks exploiting the "Follina" flaw in the Windows operating system to deploy password-stealing malware. Attributing the intrusions to a Russian nation-state group tracked as APT28 (aka Fancy Bear or Sofacy), the agency said the attacks commence with a lure document titled "Nuclear Terrorism A Very Real Threat.rtf" that, when opened, exploits the recently disclosed vulnerability to download and execute a malware called CredoMap. Follina ( CVE-2022-30190 , CVSS score: 7.8), which concerns a case of remote code execution affecting the Windows Support Diagnostic Tool (MSDT), was addressed by Microsoft on June 14, as part of its Patch Tuesday updates , but not before it was subjected to widespread zero-day exploit activity by numerous threat actors. According to an independent report published by Malwarebytes,  CredoMap  is a variant of the .NET-based credenti

Europol Busts Phishing Gang Responsible for Millions in Losses

Europol Busts Phishing Gang Responsible for Millions in Losses
June 22, 2022Ravie Lakshmanan
Europol on Tuesday announced the dismantling of an organized crime group that dabbled in phishing, fraud, scams, and money laundering activities. The cross-border operation, which involved law enforcement authorities from Belgium and the Netherlands, saw the arrests of nine individuals in the Dutch nation. The suspects are men between the ages of 25 and 36 from Amsterdam, Almere, Rotterdam, and Spijkenisse and a 25-year-old woman from Deventer, according to a  statement  from the National Police Force. Also confiscated as part of 24 house searches were firearms, ammunition, jewelry, designer clothing, expensive watches, electronic devices, tens of thousands of euros in cash, and cryptocurrency, the officials said. "The criminal group contacted victims by email, text message and through mobile messaging applications," the agency  noted . "These messages were sent by the members of the gang and contained a phishing link leading to a bogus banking website." Unsu
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