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A large botnet targets M365 accounts with password spraying attacks

Security Affairs

A botnet of 130,000+ devices is attacking Microsoft 365 accounts via password-spraying, bypassing MFA by exploiting basic authentication. SecurityScorecard researchers discovered a botnet of over 130,000 devices that is conducting password-spray attacks against Microsoft 365 (M365) accounts worldwide.

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Warning: Hackers could take over your email account by stealing cookies, even if you have MFA

Malwarebytes

The Federal Bureau of Investigation (FBI) has issued a warning that cybercriminals are taking over email accounts via stolen session cookies, allowing them to bypass the multi-factor authentication (MFA) a user has set up. Cybercriminals could use your account to spread spam and phishing emails to your contacts.

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Chinese threat actors use Quad7 botnet in password-spray attacks

Security Affairs

Microsoft warns Chinese threat actors are using the Quad7 botnet to carry out password-spray attacks and steal credentials. Chinese threat actors use the Quad7 botnet in password-spray attacks to steal credentials, Microsoft warns. These routers are used to relay brute-force attacks on Microsoft 365 accounts.

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Processing 23 Billion Rows of ALIEN TXTBASE Stealer Logs

Troy Hunt

We've also added 244M passwords we've never seen before to Pwned Passwords and updated the counts against another 199M that were already in there. The file in the image above contained over 36 million rows of data consisting of website URLs and the email addresses and passwords entered into them.

Passwords 359
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A Day in the Life of a Prolific Voice Phishing Crew

Krebs on Security

Besieged by scammers seeking to phish user accounts over the telephone, Apple and Google frequently caution that they will never reach out unbidden to users this way. The phishers also abused legitimate Google services to send Tony an email from google.com, and to send a Google account recovery prompt to all of his signed-in devices.

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ClickFix: How to Infect Your PC in Three Easy Steps

Krebs on Security

A clever malware deployment scheme first spotted in targeted attacks last year has now gone mainstream. This particular scam usually starts with a website popup that looks something like this: This malware attack pretends to be a CAPTCHA intended to separate humans from bots.

Phishing 271
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Sendgrid Under Siege from Hacked Accounts

Krebs on Security

Email service provider Sendgrid is grappling with an unusually large number of customer accounts whose passwords have been cracked, sold to spammers, and abused for sending phishing and email malware attacks.