Cyber Security Specialist Zoziel Pinto Freire shows an example of malicious file analysis presented during his lecture on BSides-Vitória 2022. My objective with this series of articles is to show examples of malicious file analysis that I presented during my lecture on BSides-Vitória 2022. For this first one, I’ll briefly introduce some crucial topics to […]
Experts spotted a new botnet named Orchard using Bitcoin creator Satoshi Nakamoto’s account information to generate malicious domains. 360 Netlab researchers recently discovered a new botnet named Orchard that uses Satoshi Nakamoto’s Bitcoin account (1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa) transaction information to generate DGA domain name. “Another change relates to the use of the DGA algorithm employed in the […]
Communications company Twilio discloses a data breach after threat actors have stolen employee credentials in an SMS phishing attack. Communications company Twilio discloses a data breach, threat actors had access to the data of some of its customers. The attackers accessed company systems using employee credentials obtained through a sophisticated SMS phishing attack. Twilio is […]
LogoKit – Threat actors leveraging Open Redirect Vulnerabilities popular in online services and apps to bypass spam filters in phishing campaigns. Resecurity, Inc. (USA), a Los Angeles-based cybersecurity company providing managed threat detection and response for Fortune 500’s, identified threat actors leveraging Open Redirect Vulnerabilities popular in online services and apps to bypass spam filters […]
Threat actors abuse open redirects on Snapchat and American Express to launch phishing attacks against Microsoft 365 users. Attackers abused open redirects on the websites of Snapchat and American Express as part of a phishing campaign targeting Microsoft 365 users. The term Open URL redirection, open redirects, refers to a security issue that makes it […]
Microsoft is actively blocking Tutanota email addresses from registering a Microsoft Teams account. Tutanota is an end-to-end encrypted email app and a freemium secure email service, as of March 2017, Tutanota’s owners claimed to have over 2 million users. The news is that Microsoft is actively blocking Tutanota email addresses from registering a Microsoft Teams […]
Researchers spotted a new family of ransomware, named GwisinLocker, that encrypts Windows and Linux ESXi servers. Researchers warn of a new ransomware called GwisinLocker which is able to encrypt Windows and Linux ESXi servers. The ransomware targets South Korean healthcare, industrial, and pharmaceutical companies, its name comes from the name of the author ‘Gwisin’ (ghost […]
Greek intelligence admitted it had spied on a journalist, while citizens ask the government to reveal the use of surveillance malware. The head of the Greek intelligence told a parliamentary committee that they had spied on a journalist with surveillance malware, Reuters reported citing two sources present. The revelation comes while media and journalists are […]
Slack is resetting passwords for approximately 0.5% of its users after a bug exposed salted password hashes when users created or revoked a shared invitation link for their workspace Slack announced that it is resetting passwords for about 0.5% of its users after a bug exposed salted password hashes when creating or revoking shared invitation […]
Twitter confirmed that the recent data breach that exposed data of 5.4 million accounts was caused by the exploitation of a zero-day flaw. At the end of July, a threat actor leaked data of 5.4 million Twitter accounts that were obtained by exploiting a now-fixed vulnerability in the popular social media platform. The threat actor offered […]