eSecurity Planet

OCTOBER 6, 2021

The malware encrypts files and spreads to the entire system to maximize damage, which forces companies to lock down the whole network to stop the propagation. Encryption is the Key. Encryption is used everywhere. Encrypting is neither hashing nor obfuscating files. What Happens During Ransomware Encryption?

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Krebs on Security

NOVEMBER 17, 2022

He’d been on the job less than six months, and because of the way his predecessor architected things, the company’s data backups also were encrypted by Zeppelin. “We’ve found someone who can crack the encryption.” Then came the unlikely call from an FBI agent. “Don’t pay,” the agent said.

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eSecurity Planet

APRIL 13, 2023

While some packers like UPX only compress the file, others can also encrypt it. The packed version is usually caught significantly fewer times compared to the original version of the malware, and many antivirus tools may simply miss the packed version. Tools like upx-mod can help you.

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Security Affairs

JULY 5, 2020

Experts spotted recent samples of the Snake ransomware that were isolating the infected systems while encrypting files to avoid interference. The Snake ransomware kills processes from a predefined list, including ICS-related processes, to encrypt associated files. ” continues the analysis. ” concludes the report.

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eSecurity Planet

MAY 25, 2022

Intrusion detection system (IDS) and intrusion prevention system (IPS) technologies – often combined as intrusion detection and prevention (IDPS) – have been in use for decades, yet they remain important cybersecurity tools even in the face of today’s rapidly changing cyber threats and complex IT environments. IDS vs. IPS.

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Security Affairs

JANUARY 2, 2024

A team of researchers released a suite of tools that could help victims to decrypt data encrypted with by the Black Basta ransomware. Independent security research and consulting team SRLabs discovered a vulnerability in Black Basta ransomware’s encryption algorithm and exploited it to create a free decryptor.

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Security Affairs

DECEMBER 23, 2021

Running the systems into safe mode will allow the malware to encrypt victims’ files without any interference because endpoint security products do not run in Safe Mode. ” reads the analysis published by Sophos. . ” reads the analysis published by Sophos. ” continues the analysis.

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eSecurity Planet

MARCH 14, 2022

Cobalt Strike was created a decade ago by Raphael Mudge as a tool for security professionals. Indeed, the tool can assess vulnerabilities and run penetration tests , while most tools on the market cannot do both. The tool is so powerful that black hat hackers and international threat groups have added it to their arsenal.

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Security Affairs

SEPTEMBER 19, 2022

” reads the analysis published by AquaSec. ” The Pollard’s Kangaroo interval ECDLP solver algorithm appears to be an attempt to break the SECP256K1 encryption which is used by Bitcoin to implement its public key cryptography. “Breaking the cryptographic encryption is considered “Mission: Impossible”.

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Security Affairs

MARCH 18, 2021

Wintriage is a live response tool that extracts Windows artifacts, it allows to extract the most artifacts as possible, but in a selective way. With them, I acquired Windows artifacts on dozens of incidents for further analysis in laboratory machines. Those tools are great, but the extracted info is not always enough.

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eSecurity Planet

JUNE 24, 2021

The increasing mobility of data, as it ping-pongs between clouds, data centers and the edge, has made it an easier target of cybercrime groups, which has put a premium on the encryption of that data in recent years. Since then, interest in fully homomorphic encryption (FHE) has increased, largely paralleling the rise of cloud computing.

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eSecurity Planet

APRIL 12, 2024

Ensure that the tools you purchase are in line with data management standards, regulatory needs, and your financial limits. Conduct content analysis to improve safety measures. Use cybersecurity training tools , seminars, online courses, and simulations to successfully engage staff and reinforce fundamental network security principles.

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Security Affairs

JANUARY 23, 2024

In early January, independent security research and consulting team SRLabs discovered a vulnerability in Black Basta ransomware’s encryption algorithm and exploited it to create a free decryptor. The ransomware employs encryption based on a ChaCha keystream, which is utilized to perform XOR operations on 64-byte-long chunks of the file.

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Security Affairs

MARCH 18, 2019

UK intelligence agency GCHQ released emulators for World War II cipher machines (Enigma, Typex and The Bombe) that can be executed in the encryption app CyberChef. CyberChef is “a simple, intuitive web app for analyzing and decoding data without having to deal with complex tools or programming languages.”

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Security Affairs

MAY 25, 2020

Ransomware encrypts from virtual machines to evade antivirus. Ragnar Locker deploys Windows XP virtual machines to encrypt victim’s files, the trick allows to evaded detection from security software. ” continues the analysis. Mounting all the shared drives to encrypt.

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eSecurity Planet

FEBRUARY 27, 2019

We review Always Encrypted, a free database security tool included with Microsoft SQL Server.

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The Last Watchdog

JANUARY 28, 2024

Related: The role of ‘attribute based encryption’ There’s nothing intrinsically wrong with companies seeking to better understand their customers. Both regulations have profound implications for companies seeking to collect and apply aggregate statistical analysis to consumer data. That could be about to change.

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The Last Watchdog

FEBRUARY 20, 2024

These tools saved 2.5 Microsoft Bot Framework: Microsoft’s offering is a robust platform providing bot development, deployment and management tools. Health care relies on it for intelligent symptom analysis and health information dissemination. In 2022, 88% of users relied on chatbots when interacting with businesses.

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Security Affairs

DECEMBER 27, 2023

The authors also implemented different obfuscation techniques and custom encryption to avoid detection. ” To circumvent analysis and detection, the malware encrypts all C2 communications. The usage of the Xamarin framework allowed threat actors to remain under the radar for a long time. ” concludes the report.

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The Last Watchdog

MARCH 26, 2020

Related: Why cybersecurity should reflect societal values An emerging approach, called Network Traffic Analysis , is gaining traction as, in effect, a catch-all network security framework positioned at the highest layer of the networking stack. We’re going to be part of an ecosystem that evolves with a variety of tools.

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Security Affairs

DECEMBER 6, 2022

The researchers believe that the toolkit isn’t a serious tool, it only implements a limited set of ransomware functionalities. The sample analyzed by the expert masquerades as a software update, it shows a progress bar that represents the progress of encryption. ” reads the analysis published by Fortinet.

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Security Affairs

OCTOBER 5, 2022

The security firm discovered a bug in the encryption process implemented by the Hades ransomware that can be used to recover the files encrypted by some variants. “We discovered a vulnerability in the encryption schema that allows some of the variants to be decrypted without paying the ransom.

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eSecurity Planet

OCTOBER 8, 2021

With a multi-layered approach to endpoint protection, the ESET PROTECT Advanced solution fits small to medium-sized businesses and offers advanced EPP capabilities, full disk encryption , and an automated sandbox for dynamic threat analysis. Full Disk Encryption. Read more: 19 Best Encryption Software & Tools of 2021.

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Security Affairs

JULY 8, 2019

Experts observed an increase of the malware spreading using less-known archive types as dropper,in particular ISO image.Delphi wrapper makes analysis harder. Technical Analysis. As expected, the malicious payload is stored in the resource section in encrypted way (probably using a simple XOR-encryption). Introduction.

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Security Affairs

OCTOBER 13, 2023

The researchers pointed out that the basic characteristics of the tools used by the threat actors and their broad diversity, suggest that they are disposable tools employed for downloading and executing additional payloads. The tools have no code similarities with any known tool used by other threat actors.

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Security Affairs

JANUARY 6, 2023

The tool is an executable that can be downloaded from Bitdefender servers. The decryptor also supports the “Scan Entire System” mode which allows users to search for all encrypted files. By checking the backup option, users will see both the encrypted and decrypted files. “MegaCortex decryption tool will be released soon.

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eSecurity Planet

JUNE 16, 2022

Cyber criminals may damage, destroy, steal, encrypt, expose, or leak data as well as cause harm to a system. Encrypted threats spiked 167%, ransomware increased 105%, and 5.4 In May, cybersecurity researchers revealed that ransomware attacks are increasing their aggressive approach by destroying data instead of encrypting it.

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Security Affairs

JULY 8, 2022

Emsisoft has released a free decryption tool that allows victims of the AstraLocker and Yashma ransomware to recover their files without paying a ransom. Cybersecurity firm Emsisoft released a free decryptor tool that allows victims of the AstraLocker and Yashma ransomware to recover their files without paying a ransom.

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eSecurity Planet

DECEMBER 19, 2023

Breaking Encryption Encryption is a key security solution for both at-rest and in-transit data protection. Vulnerabilities in encryption techniques, on the other hand, or bad key management policies, might expose data to prospective intrusions. Attackers may try to exploit these flaws to decode and access sensitive data.

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Security Affairs

APRIL 9, 2024

The email is crafted to trick recipients into clicking on an attachment, which downloads a ZIP file containing a Batch file obfuscated with the BatCloak tool. The developers used AES encryption and implemented techniques to bypass the anti-malware scan interface (AMSI).

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Security Affairs

MAY 9, 2021

CISA has published an analysis of the FiveHands ransomware, the same malware that was analyzed a few days ago by researchers from FireEye’s Mandiant experts. Cybersecurity and Infrastructure Security Agency (CISA) has published an analysis of the FiveHands ransomware that was recently detailed by FireEye’s Mandiant.

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Security Affairs

SEPTEMBER 8, 2023

The attacks that took place in the past weeks were detected by researchers at Google’s Threat Analysis Group (TAG). Once the attackers establish contact with the target via a social media site, they move to an encrypted messaging app such as Signal, WhatsApp or Wire.

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Data Matters

FEBRUARY 21, 2018

After supporters and opponents of mandated government access to encrypted communications publicly feuded for much of 2016, reprising arguments they’ve had since at least the days of the “Clipper Chip,” these “encryption debates” seemed to quiet down for much of last year. See, e.g., here.)

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Security Affairs

JANUARY 18, 2022

#Ransomware Hunt: "White Rabbit" with extension " scrypt", drops note for each encrypted file with "<filename> scrypt.txt" with victim-specific information: [link] "Follow the White Rabbit…" pic.twitter.com/lhzHi5t1KK — Michael Gillespie (@demonslay335) December 14, 2021. scrypt.txt.” .

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Security Affairs

OCTOBER 14, 2021

. “The Threat Hunter Team first spotted suspicious use of AdFind, a legitimate command-line Active Directory query tool, on the victim organization’s network. ” reads the analysis published by Symantec. yanluowang extension to the filenames of the encrypted files. The ransomware appends the .yanluowang

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Security Affairs

JULY 29, 2023

The analysis of the encryptor code revealed that use of the ‘esxcli’ command-line VMware ESXi management tool enumerate virtual machines and terminate them. Once the VM has been terminated, the malicious code can encrypt virtual disks (.vmdk), vmdk), metadata (.vmsd), vmsd), and snapshots (.vmsn). vmdk), metadata (.vmsd),

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Security Affairs

MARCH 26, 2021

The Federal Bureau of Investigation (FBI) issued an alert to warn that the Mamba ransomware is abusing the DiskCryptor open source tool to encrypt entire drives. Mamba ransomware is one of the first malware that encrypted hard drives rather than files that was detected in public attacks. ” continues the alert.

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