Krebs on Security

SEPTEMBER 30, 2023

The government says Snatch used a customized ransomware variant notable for rebooting Microsoft Windows devices into Safe Mode — enabling the ransomware to circumvent detection by antivirus or endpoint protection — and then encrypting files when few services are running.

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Ransomware Accountability Cybercrime Backups 218

Security Boulevard

MARCH 25, 2022

This blog will highlight the most recent changes to the ransomware and how Conti improved file encryption, introduced techniques to better evade security software, and streamlined the ransom payment process. Start encryption using the specified path as the root directory. Size parameter for large file encryption.

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Security Affairs

JANUARY 8, 2021

“The loader decrypts the malicious malware and executes it using memfd create (as described in this blog in 2018). Upon executing the code, it will ask the user the path for the payload to be encrypted and the password to be used for AES encryption to hide the malware within the loader. Pierluigi Paganini.

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SecureList

DECEMBER 27, 2022

The archive file we recently discovered contained a password-protected decoy document and a shortcut file named “ Password.txt.lnk “ This is a classic BlueNoroff strategy to persuade the victim to execute the malicious shortcut file to acquire the decoy document’s password. slideLayouts/slideLayout1.xml"/></Relationships>

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The Last Watchdog

SEPTEMBER 28, 2022

Text message phishing — also known as “smishing” — is when scammers send texts to entice people to transmit personal information, such as passwords or credit card numbers. To prevent malicious scams, companies should do the following: •Install high-quality antivirus software and spam filters.

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Phishing Scams Cybercrime Passwords 124

Identity IQ

APRIL 12, 2023

In this blog, we cover the top-seven data security practices every workplace should implement to help protect valuable information and more. Ransomware blocks an employer’s access to its data via encryption, and the employer will have to pay a ransom to access it. Password theft. Why is Data Security Important in the Workplace?

Passwords 52

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Krebs on Security

APRIL 22, 2019

The software is broadly classified as malware by most antivirus companies, likely thanks to an advertised feature list that includes dumping the remote computer’s temporary memory; retrieving passwords from dozens of email programs; snarfing the target’s Wi-Fi credentials; and viewing the target’s Webcam.

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BH Consulting

FEBRUARY 23, 2023

In this blog, we’ll look at how you can minimise the impact of your personal mobile being compromised. Encrypt the data stored on your mobile phone. For Android, however, you may need to enable encryption manually. Change your mobile phone password/PIN. But what happens if you think your mobile has been breached?

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Mobile Hacking Banking VPN 105

Webroot

OCTOBER 14, 2022

The year’s most successful ransomware group Introduced the triple extortion method – encryption + data leak + DDOS attack Accept payments in two untraceable cryptocurrencies Monero and Zcash as well as Bitcoin. The post Discover 2022’s Nastiest Malware appeared first on Webroot Blog.

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Krebs on Security

FEBRUARY 23, 2019

19, Apex was alerted that its systems had been infected with a destructive strain of ransomware that encrypts computer files and demands payment for a digital key needed to unscramble the data. “When they encrypt the data, that happens really fast,” he said. Roswell, Ga. on Tuesday, Feb. More than a week later on Jan.

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Backups Ransomware Encryption Internet 228

Security Affairs

JANUARY 29, 2021

Attackers used Twitter profiles for sharing links to a blog under their control ( br0vvnn[.]io The attackers published a blog post titled “DOS2RCE: A New Technique To Exploit V8 NULL Pointer Dereference Bug ” and shared it via Twitter. “If you visited the referenced ZINC-owned blog (br0vvnn[.]io),

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Malware Antivirus Hacking Accountability 117

Duo's Security Blog

NOVEMBER 2, 2023

The health checks you are familiar with Duo Desktop will continue to exist as a lightweight agent installed on a user’s endpoint.

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Mobile Antivirus Firewall Cybersecurity 109

Fox IT

SEPTEMBER 2, 2022

After we discovered in February 2022 the SharkBotDropper in Google Play posing as a fake Android antivirus and cleaner, now we have detected a new version of this dropper active in the Google Play and dropping a new version of Sharkbot. The body of the request is encrypted using RC4 and a hard coded key. Introduction. Conclusion.

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Malwarebytes

AUGUST 3, 2022

This blog post was authored by Ankur Saini and Hossein Jazi. In this blog post, we will analyze Woody Rat’s distribution methods, capabilities as well as communication protocol. Data encryption with HTTP requests. For encryption and decryption the malware uses BCryptEncrypt and BCryptDecrypt respectively.

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CyberSecurity Insiders

MAY 31, 2023

This blog was jointly written with Alejandro Prada and Ofer Caspi. Due to its relatively large size, certain antivirus may choose not to analyze it, potentially bypassing detection. Antivirus / EDR evasion: The rootkit uses several evasion techniques: AMSI bypass: PowerShell inline script patches “amsi.dll!AmsiScanBuffer”

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Malwarebytes

MAY 6, 2022

REvil now seems to have returned to the fray with new payloads, and a new leak blog displaying a mixture of new victims and old victims known to have been attacked by REvil. At first, some suspected that Onyx may be a wiper rather than ransomware because it destroyed files larger than 2MB instead of encrypting them. New gangs emerge.

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Identity IQ

DECEMBER 6, 2023

Look for signs of poor website security, such as a lack of HTTPS encryption, a suspicious website URL, or grammatical errors in the website content. Stay informed and aware: Keep yourself updated on the latest holiday scams and trends by reading reputable blogs , news sources, and consumer protection websites.

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Scams Identity Theft Retail Antivirus 52

Security Boulevard

JANUARY 17, 2024

This blog post describes methods that SpecterOps consultants have researched to successfully circumvent this technology during offensive assessments. Antivirus Inspection Not all RBI products will prioritize this time factor. This can be due to encryption or even size. When creating payloads such as Office documents, .pdf

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DNS Penetration Testing Passwords Encryption 64

CyberSecurity Insiders

FEBRUARY 25, 2022

This blog was jointly written with Santiago Cortes. According to these blogs, at least 10 companies may have been impacted by these ransomware campaigns in the first two weeks of February. Blog BotenaGo. Executive summary. The BlackCat malware has code very similar to its predecessors.

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Webroot

MAY 3, 2022

Passwords have become a common way to access and manage our digital lives. Having a password allows you to securely access your information, pay bills or connect with friends and family on various platforms. However, having a password alone is not enough. Your passwords also need to be managed and protected.

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Passwords Identity Theft Password Management Antivirus 117

Malwarebytes

AUGUST 3, 2022

This blog post was authored by Ankur Saini and Hossein Jazi. In this blog post, we will analyze Woody Rat's distribution methods, capabilities as well as communication protocol. The used lure is in Russian is called " Information security memo " which provide security practices for passwords, confidential information, etc.

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Security Affairs

OCTOBER 17, 2018

At a first sight, the office document had an encrypted content available on OleObj.1 Those objects are real Encrypted Ole Objects where the Encrypted payload sits on “EncryptedPackage” section and information on how to decrypt it are available on “EncryptionInfo” xml descriptor. Stage1: Encrypted Content.

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Security Boulevard

JULY 18, 2022

Check out our previous blog Joker Joking in Google Play for a more in-depth analysis of this specific campaign. Serving as one of the primary reasons why these malicious apps often go undetected by antivirus softwares and during evaluation by the Play Store. The dropped executable hides the payload with Base64 encryption.

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Banking Malware Encryption Architecture 98

Security Affairs

FEBRUARY 16, 2021

Latin American Javali trojan weaponizing Avira antivirus legitimate injector to implant malware. After that, the following files are extracted, namely: Avira.exe : Legitimate injector from Avira Antivirus. In the last few years, many banking trojans developed by Latin American criminals have increased in volume and sophistication.

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Malwarebytes

JANUARY 10, 2024

It looks like Atomic Stealer was updated around mid to late December 2023, where its developers introduced payload encryption in an effort to bypass detection rules. In this blog post, we will review the latest changes with Atomic Stealer and the recent distribution with malicious ads via the Google search engine.

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Passwords Antivirus Malware Encryption 113

Security Affairs

MAY 29, 2019

su”, using an SSL encrypted communication, and stores them in “C:UsersPublic” path: “ rtegre.exe ” and “ wprgxyeqd79.exe The “-p” parameter, indeed, specify the password of the archive to be extracted. Technical details, including IoCs and Yara Rules, are available in the analysis published in the Yoroi blog. Pierluigi Paganini.

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Retail Banking Advertising Encryption 69

Krebs on Security

MAY 13, 2024

was used to register at least six domains, including a Russian business registered in Khoroshev’s name called tkaner.com , which is a blog about clothing and fabrics. used the password 225948. According to DomainTools.com , the address sitedev5@yandex.ru Another domain registered to that phone number was stairwell[.]ru

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Security Affairs

MAY 16, 2019

Firstly, we noticed this secondary component was well protected against antivirus detection, in fact, the PE file was signed by Sectigo in the first half of May, one of the major Russian Certification Authority. Technical details, including IoCs and Yara Rules, are available in the analysis published on the Yoroi blog.

Banking 74

Banking Malware Surveillance Retail 74

Security Boulevard

MARCH 24, 2022

3 ] The emails redirected victims to a website delivering fake antivirus updates that eventually downloaded Cobalt Strike beacons, or two custom Go malware variants named GraphSteel and GrimPlant. Franco Gabrielli: «I nostri antivirus prodotti dai russi sono da cambiare. The UA-Cert attributes the activity to UAC-0056. 16, 2022). “[MàJ]

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SecureList

FEBRUARY 15, 2021

The email antivirus was triggered most frequently by email messages containing members of the Trojan.Win32.Agentb We assume that those who called the numbers were asked to provide the login and password for the service that the scammers were imitating, or to pay for some diagnostics and troubleshooting services. Agentb malware family.

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Phishing Malware Scams Accountability 136

Security Affairs

FEBRUARY 12, 2019

Most of the infection attempts started with a particular email attachment: a compressed archive containing stealthy JavaScript code, most of the times able to avoid antivirus detection during the initial stages of the attack campaigns. Figure 3: Encrypted communication with driverconnectsearch[.]info Stage 1 – The Attached Javascript.

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Malware Advertising InfoSec Passwords 83

Security Boulevard

NOVEMBER 3, 2022

Use a VPN: A VPN is a Virtual Private Network , which protects your data and privacy online by creating an encrypted tunnel that makes your activity far more anonymous than without one. appeared first on McAfee Blog. Leer más McAfee Blog. appeared first on McAfee Blog. A simple search could show you plenty.

Retail 52

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Security Affairs

APRIL 9, 2019

The installed payload actually is a Base64 encoded PE32 file, file-lessly stored within the registry hive to avoid antivirus detection. Stealer and CryptoStealer module to steal cryptocurrency wallets and saved passwords. Technical details, including IoCs and Yara Rules, are available in the analysis published on the Yoroi blog.

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Security Boulevard

MAY 3, 2022

In early versions of the ransomware, file encryption utilized a hardcoded 1,024-bit RSA public key along with a 128-bit AES key that was derived from a file retrieved from a command and control server. This new variant introduced many additional features and updated the file encryption algorithms. Introduction. Initialization.

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Encryption Ransomware Antivirus Backups 75

Duo's Security Blog

MARCH 9, 2022

Together these practices — which include multi-factor authentication (MFA), restricting administrative privileges and daily backups — provide a clear framework for businesses anywhere that are looking to improve their foundational security footing , as we’ve previously noted on the Duo Blog.

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Cybersecurity Authentication Passwords VPN 89

Krebs on Security

OCTOBER 21, 2019

Antivirus and security giant Avast and virtual private networking (VPN) software provider NordVPN each today disclosed months-long network intrusions that — while otherwise unrelated — shared a common cause: Forgotten or unknown user accounts that granted remote access to internal systems with little more than a password.

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eSecurity Planet

DECEMBER 3, 2021

Krebs wrote for The Washington Post between 1995 and 2009 before launching his current blog KrebsOnSecurity.com. Facebook Plans on Backdooring WhatsApp [link] — Schneier Blog (@schneierblog) August 1, 2019. Normally account take overs are due to insecure passwords or recovery options, this is definitely something different.

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Accountability Cybersecurity Penetration Testing InfoSec 134