Schneier on Security

JULY 26, 2023

Instead, it relies on what the researchers describe in their presentation slides as “secret, proprietary cryptography,” meaning it is typically difficult for outside experts to verify how secure the standard really is. Details of the security analysis. Crucially, TETRA is not open-source. It’s just not a good idea.

Encryption 88

Encryption Security Access IT 88

Security Affairs

JANUARY 6, 2023

The experts noticed that in MegaCortex attacks other malware like Emotet and Qbot (aka Qakbot) were present in the same network. 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.

Ransomware 93

Ransomware Encryption Security IT 93

Schneier on Security

OCTOBER 22, 2019

NIST has completed a study -- it was published last year, but I just saw it recently -- calculating the costs and benefits of the Advanced Encryption Standard. On the other hand, the present value of NIST's costs from today's perspective is $127 million. Still, I like seeing this kind of analysis about security infrastructure.

Encryption 47

Encryption Agriculture Retail Manufacturing 47

Security Affairs

JULY 5, 2023

Once inside the system, this malicious variant stealthily extracts sensitive information and proceeds to encrypt the compromised files.” ” reads the analysis published by Zscaler. This domain serves as a disguise, presenting itself as a ChatGpt site to lure victims into downloading a fake offline version of ChatGpt.”

Energy and Utilities 80

Energy and Utilities Ransomware Encryption Manufacturing 80

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.) device locking, secure messaging, etc.);

Encryption 60

Encryption Government Access Privacy 60

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.

Ransomware 114

Ransomware Encryption Cybersecurity Risk 114

Security Affairs

FEBRUARY 9, 2023

Experts spotted a new variant of ESXiArgs ransomware targeting VMware ESXi servers, authors have improved the encryption process, making it much harder to recover the encrypted virtual machines. backdoor that was observed in the initial ransomware attacks, was not present on the systems infected with the new variant.

Ransomware 85

Ransomware Encryption IT Security 85

Thales Cloud Protection & Licensing

APRIL 10, 2024

presents an opportunity to future-proof your payment card security. A comprehensive understanding of your cardholder data environment (CDE) is crucial for later risk analysis and targeted control implementation. This is the time to upgrade legacy encryption toward quantum-resistant schemes to future-proof your business.

Compliance 71

Compliance Encryption Risk Cybersecurity 71

Thales Cloud Protection & Licensing

NOVEMBER 29, 2017

Not all types of encryption give you the coverage and flexibility you need. One of the most common and most effective approaches to protecting data is encryption. Encryption is typically employed on four layers of the technology stack: Disk (or media). The pros and cons of encrypting at different layers in the technology stack.

Encryption 67

Encryption Compliance Security Archiving 67

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.

Security 97

Security Cloud Encryption Authentication 97

Security Affairs

MARCH 16, 2020

The name PXJ ransomware comes from the file extension that it appends to encrypted files. ” reads the analysis post by IBM X-Force. . ” reads the analysis post by IBM X-Force. The PXJ ransomware uses both AES and RSA algorithms to encrypt the data, the technique is common to other threats.

Ransomware 100

Ransomware Encryption Communications IT 100

Security Affairs

JANUARY 31, 2021

Last year, the group published a detailed analysis on how the Chinese government has improved its surveillance system to detect and block the popular circumvention tools Shadowsocks and its variants. Shadowsocks is a free and open-source encryption protocol project, widely used in China to circumvent Internet censorship.

Paper 133

Paper Encryption Government IT 133

Security Affairs

JUNE 10, 2022

The ransomware encrypts files on the targeted systems using the “.cuba” ” reads the analysis published by Trend Micro. ” The new variant is able to terminate a larger number of processes and services, to prevent that applications could lock them and interfere with the encryption process. .” cuba” extension.

Ransomware 114

Ransomware Encryption Communications Cybersecurity 114

Security Affairs

AUGUST 2, 2022

Upon visiting the website, the victim will notice that it is presented as an online forum directly answering his query. “When the user downloaded and opened this file, it spawned an obfuscated script which, through registry stuffing, installed a chunk of encrypted codes in the registry and added scheduled tasks for persistence. .

Encryption 95

Encryption Archiving Ransomware Access 95

The Last Watchdog

MARCH 25, 2020

Pitt maintains that machine learning needs to be trained to do things that are repeatable, so that once those frameworks are in place, it can be presented with more complex tasks. Analyzing encrypted traffic One area where Juniper is differentiating itself is in the area of encrypted traffic analysis.

Artificial Intelligence 126

Artificial Intelligence Encryption Digital transformation Cloud 126

Security Affairs

JULY 11, 2022

This C2 server is controlled by a group of operators that come from the previous analysis in 2022, the various brands being divided among the operators of the group (in a call center modus operandi ). Figure 2 presents an example of an SMS sent to Internet end-users during the ANUBIS social engineering wave.

Phishing 99

Phishing Access Information Security Encryption 99

Security Affairs

MARCH 14, 2022

Although there are no significant differences and sophistication in contrast to other well-known trojans such as Maxtrilha , URSA , and Javali , an analysis of the artifacts and IOCs obtained from this campaign is presented below. The victims’ data is encrypted and sent to the C2 server geolocated in Russia. Key findings.

Encryption 83

Encryption Phishing Communications IT 83

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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Ransomware Cybersecurity Phishing Encryption 138

The Last Watchdog

JUNE 21, 2020

Although most people think of ransomware as a dodgy application that encrypts data and holds it for ransom, the concept is much more heterogeneous than that. File encryption 2013 – 2015. It emerged in September 2013 and paved the way for hundreds of file-encrypting menaces that have splashed onto the scene ever since.

Ransomware 204

Ransomware Encryption Privacy Security awareness 204

Security Affairs

MARCH 3, 2021

The analysis of the HTTP POST request sent to validate the code revealed that the code is encrypted before being sent, this means that in order to automate bruteforce attacks it was necessary to break the encryption. “If you look at the screenshot above, the code 1234567 we entered was nowhere present in the request.

Passwords 102

Passwords Encryption Security IT 102

The Last Watchdog

SEPTEMBER 18, 2018

One reason for the enduring waves of ransomware is that unstructured data is easy for hackers to locate and simple for them to encrypt. The main difference between the two is organization and analysis. For structured data, users can run simple analysis tools, i.e., content searches, to find what they need. Delete data.

Unstructured data 158

Unstructured data Ransomware Mining Encryption 158

Security Affairs

MARCH 23, 2023

.’ “Vulnerability CVE-2023-27532 in a Veeam Backup & Replication component allows an unauthenticated user operating within the backup infrastructure network perimeter to obtain encrypted credentials stored in the configuration database.” ” reads the analysis published by the experts.

Access 90

Access Encryption Security IT 90

Security Affairs

OCTOBER 20, 2021

The analysis of the C2 infrastructure revealed that the most notable activity is in the US, Turkey, UAE, Iraq, and Saudi Arabia. ” reads the analysis published by TrendMicro. ” continues the analysis. Currently, the new variant was employed in attacks aimed at users in the Middle East.

Communications 83

Communications Security Encryption IT 83

Security Affairs

JULY 4, 2019

Now the threat is evolving, the Sodinokibi ransomware includes fresh code to elevate its privileges on a target machine by exploiting a vulnerability in the Win32k component present on Windows 7 through 10 and Server editions. ” continues the analysis. Further details, including IoCs, are reported in the analysis.

Ransomware 71

Ransomware Encryption Government IT 71

Security Affairs

DECEMBER 17, 2019

. “At present, the industry has never disclosed the Lazarus Group’s attack samples and cases against the Linux platform. And our analysis shows that this is a fully functional, covert and RAT program targeting both Windows and Linux platforms, and the samples share some key characters being used by Lazarus Group.”

CMS 70

CMS File names Encryption Access 70

Security Affairs

OCTOBER 10, 2019

” reads the analysis published by ESET. The Attor malware makes sophisticated use of encryption to hide its components. The plugins are delivered as DLLs asymmetrically encrypted with RSA, then they are recovered in memory, using the public RSA key embedded in the dispatcher. ” continues the analysis.

Communications 79

Communications Encryption Metadata Libraries 79

Security Affairs

MAY 4, 2022

The analysis of the source code of the VHD ransomware revealed many similarities with other malware families, including the BEAF ransomware, PXJ ransomware, ZZZZ ransomware, and CHiCHi ransomware. ” reads the analysis published by Trellix. com was present in samples of both the ‘CHiCHi’ and ‘ZZZZ’ ransomware families.

Ransomware 92

Ransomware Encryption Cybersecurity Security 92

Security Affairs

APRIL 2, 2019

Compromised websites were using SSL certificates issued by Automatic Certificate Management Environment (ACME ) -driven certificate authorities, such as Let’s Encrypt , GlobalSign, cPanel , and DigiCert. ” reads the analysis from Zscaler. “The hidden /.well-known/ zip) that contain the JavaScript file. jpg and msges.

CMS 104

CMS Phishing Ransomware File names 104

Thales Cloud Protection & Licensing

DECEMBER 22, 2020

New EU restrictions could force companies to change data transfer practices and adopt more advanced data encryption methods. The 2020 analysis found that customer data was by far the most-commonly compromised type of record with 80% of breached organizations saying that customer PII was affected. Tue, 12/22/2020 - 10:08. In the Dec.

Data Privacy 118

Data Privacy Privacy Security Encryption 118

Security Affairs

OCTOBER 17, 2018

Today I’d like to share an interesting analysis of a Targeted Attack found and dissected by Yoroi (technical details are available here ). The analyzed email presented two attachments to the victim: A company profile, aiming to present the company who was asking for spare parts. Stage1: Encrypted Content.

Computer and Electronics 85

Computer and Electronics Encryption Military Security 85

Security Affairs

JULY 2, 2020

. “The company claims to have been the victim of a virus attack, but what motivated this attack has been kept confidential: hackers have invaded the system and sent a virus that encrypts all Windows system files.” ” reads the analysis published by AppGate. ” reads the analysis published by AppGate.

Ransomware 119

Ransomware Encryption Access IT 119

Security Affairs

MARCH 10, 2022

Researchers pointed out that the new Emotet botnet supports new features to avoid detection and analysis, such as the use encryption for network traffic and the separation of the process list into its own module. The new version is also able to gather additional information about the infected host. . Pierluigi Paganini.

Cleanup 91

Cleanup Encryption Ransomware Cybersecurity 91

Security Affairs

SEPTEMBER 4, 2019

Technical Analysis. JSWorm encrypts all the user files appending a new extension to their name. During the encryption phase, the ransomware creates an HTML Application “JSWRM-DECRYPT.hta” in each folder it encounters. The malware encrypts all the files whose extension is not present in the list.

Ransomware 79

Ransomware Encryption File names Libraries 79

Security Affairs

FEBRUARY 26, 2021

It lists the IP addresses of the local ARP cache and sends them a packet, then it lists all the sharing resources opened on the found IPs, mounts each of them, and attempts to encrypt their content. “The content of this scheduled task is described in the analysis present in this document. ” continues the report.

Ransomware 118

Ransomware Passwords Encryption IT 118

Security Affairs

AUGUST 10, 2020

Pavel explained that attackers could also collect information even when the traffic is encrypted. The analysis of DNS could reveal the user’s Internet browsing history while the analysis of TLS certificates could allow fingerprinting the servers the user connected. ” reads the notification published by the FBI. “The

Communications 84

Communications Encryption IT Security 84

Security Affairs

MAY 7, 2021

This will help me later in the case I will be able to obtain a firmware that eventually is encrypted (i.e. Firmware Analysis: Passed the initial shock, I thought the data inside the dump would have been still encrypted in some way. With of course, an active anti-tamper detection mechanism that will void the encrypted content.

Security 98

Security Passwords Encryption Access 98

Security Affairs

DECEMBER 10, 2018

” reads the analysis published by MalwareBytes. The Python script looks for the presence of Little Snitch, a commonly-used outgoing firewall, and halt the infection process if it is present. The analysis of the code revealed another interesting feature, the code to download and install a root certificate for the mitmproxy tool.

Encryption 86

Encryption Security IT 86