Security Affairs

AUGUST 26, 2019

The name of the ransomware comes after the extension it adds to the encrypted file names, the malicious code also deletes their shadow copies to make in impossible any recovery procedure. Below the ransom note dropped by the Nemty ransomware after the encryption process is completed. ” continues BleepingComputer.

Ransomware 90

Ransomware Malware Antivirus Encryption 90

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.

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Ransomware Hacking Encryption Penetration Testing 243

Security Affairs

SEPTEMBER 28, 2020

“When the attack happened multiple antivirus programs were disabled by the attack and hard drives just lit up with activity. ” Some reports circulating online reveal that the ransomware added the “ ryk” extension to the filenames of encrypted documents, a circumstance that confirms a Ryuk ransomware infection.

Ransomware 113

Ransomware Healthcare Advertising Antivirus 113

Security Affairs

JANUARY 31, 2020

Ryuk infects computers by encrypting all local and shared files, not allowing the user’s access without paying the ransom. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. DOWNLOAD FULL REPORT.

Malware 107

Malware Retail Advertising Antivirus 107

Security Affairs

MARCH 19, 2020

” According to the experts, the first infections were observed in late 2019, victims reported their files were encrypted by a strain of malware. locked to the filename of the encrypted files. “On one of the compromised information systems, experts found encrypted files with the extension “ newversion.”

Government 104

Government Ransomware Encryption Penetration Testing 104

Security Affairs

APRIL 27, 2020

Shade was considered one of the most dangerous threats in the cyber crime scenario, it has been active at least since 2014 when a massive infection was observed in Russian. Unlike other ransomware strains that don’t encrypt victims in Russia and other CIS countries, Shade also targets computers in Russia and Ukraine.

Ransomware 117

Ransomware Advertising Antivirus Education 117

Security Affairs

NOVEMBER 5, 2020

’ In a first attack scenario, hackers leverage a Microsoft antivirus component to load mpsvc.dll that acts as a loader for Groza_1.dat. The attackers use a simple XOR encryption algorithm with the string “Hapenexx is very bad” as a key. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Encryption 108

Encryption Malware Advertising Antivirus 108

Security Affairs

MARCH 19, 2019

The ransomware encrypts data on the victim’s machine and appends the.Jnec extension to the encrypted data asking a ransom 0.05 ransomware still has a low detection rate , it was identified as malicious by 31/71 antivirus of the VirusTotal services. At the moment of writing, 29 antivirus engines detect JNEC.a

Ransomware 70

Ransomware Antivirus Encryption Advertising 70

Security Affairs

SEPTEMBER 23, 2020

Even today, less than half of the known antivirus engines are flagging the infection on VirusTotal , as observed by BleepingComputer: The APT28 group (aka Fancy Bear , Pawn Storm , Sofacy Group , Sednit , and STRONTIUM ) has been active since at least 2007 and it has targeted governments, militaries, and security organizations worldwide.

Antivirus 107

Antivirus Government Malware Advertising 107

Security Affairs

JULY 11, 2019

The ransomware , tracked by Intezer as “ QNAPCrypt ” and “ eCh0raix ” by Anomali , is written in the Go programming language and uses AES encryption to encrypt files. encrypt extension to filenames of encrypted files. encrypt extension to the encrypted files.” onion websites.

Ransomware 87

Ransomware Encryption Malware Advertising 87

Security Affairs

NOVEMBER 18, 2019

NextCry is a new ransomware that was spotted by researchers while encrypting data on Linux servers in the wild. T he name comes from the extensions the ransomware appends to the filenames of encrypted files. The malicious code targets Nextcloud instances and it is currently undetected by antivirus engines. ” said xact64.

Ransomware 74

Ransomware Encryption Malware Advertising 74

Security Affairs

DECEMBER 9, 2019

Experts from Antivirus maker Emsisoft discovered a bug in the decrypter app of the infamous Ryuk ransomware. megabytes) it will only encrypt certain parts of it in order to save time and allow it to work its way through the data as quickly as possible before anyone notices.” ” reads the post published by Emsisoft.

Ransomware 58

Ransomware Encryption Backups Advertising 58

Security Affairs

OCTOBER 30, 2019

Researchers at Emsisoft firm has released a new free tool to decrypt files encrypted by the Paradise ransomware. Security experts at Emsisoft have developed a tool to decrypt files encrypted by the Paradise ransomware. This ransomware family encrypts files using Salsa20 and RSA-1024 and it appends several extensions to theis filenames.

Ransomware 42

Ransomware Encryption Advertising Antivirus 42

Security Affairs

JUNE 12, 2019

The flaw could be exploited by malicious programs trigger a denial of service condition by interrupting the encryption service for other programs. Obviously, lots of software that processes untrusted content (like antivirus) call these routines on untrusted data, and this will cause them to deadlock.” Pierluigi Paganini.

Encryption 70

Encryption Advertising Antivirus Hacking 70

Security Affairs

JANUARY 31, 2020

“In July 2018, we succeeded in decrypting encrypted communication with an infected server and an external server that was performing unauthorized communication, and stored it on our internal server for information sharing with other departments used by our defense business division 27,445 files were found to have been accessed illegally.

Data breaches 92

Data breaches Advertising Antivirus Encryption 92

Security Affairs

FEBRUARY 17, 2019

Adiantum will bring encryption on Android devices without cryptographic acceleration. Astaroth Trojan relies on legitimate os and antivirus processes to steal data. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Advertising 68

Advertising Antivirus Malware Backups 68

Security Affairs

AUGUST 3, 2020

The authors of the GandCrab RaaS also offers technical support and updates to its members, they also published a video tutorial that shows how the ransomware is able to avoid antivirus detection. ransom amount, individual bots and encryption masks). Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

Ransomware 116

Ransomware Advertising Malware Hacking 116

CyberSecurity Insiders

MAY 31, 2023

It was first released in July 2014 as “xRAT” and renamed to “Quasar” in August 2015. 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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Malware Antivirus Encryption Advertising 117

Security Affairs

MARCH 10, 2020

Once encrypted files with the ransomware, threat actors were also infected by banking Trojans like Dridex trojan, a circumstance that suggests this malware was used as the initial attack vector. . In many cases, some machines run without standard safeguards, like security updates and cloud-delivered antivirus protection.”

Ransomware 114

Ransomware Cybercrime Social Engineering Banking 114

Security Affairs

NOVEMBER 19, 2019

To bypass antivirus systems, hackers send out malicious emails in non-working hours with delayed activation. Another technique used by cybercriminals to bypass antivirus systems is a targeted attack, in which malicious email are delivered outside regular working hours. More than 80% of all malicious files were disguised as .zip

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Ransomware Antivirus Malware Banking 70

eSecurity Planet

FEBRUARY 15, 2022

The ransomware encrypts files on compromised Windows host systems, including physical and virtual servers, the advisory noted, and the executable leaves a ransom note in all directories where encryption occurs, including ransom payment instructions for obtaining a decryption key. 7 SP1, 8, 8.1)

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Ransomware Encryption Backups Accountability 127

Security Affairs

MAY 30, 2020

Encryption. You and your partners can cipher all TLS (the successor to SSL) transfers, be it one-way encryption (also called standard one-way TLS) or even better, shared encryption (two-way TLS). Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Just be cryptic. Call Security Experts.

Authentication 113

Authentication Firewall Encryption Passwords 113

Security Affairs

SEPTEMBER 15, 2019

According to the experts, LOLbins are very effecting in evading antivirus software. . The C2 data are encoded in base64 format as well as custom encrypted, attackers inserted them within posts on Facebook or the profile information about user accounts on YouTube. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->.

Phishing 81

Phishing Malware Encryption Network Security 81

SiteLock

AUGUST 27, 2021

2014 could go down as one of the most significant years in the world of cybersecurity, and malware in particular. The malware was so good it was easily able to avoid the security of encryption by grabbing the data in that millisecond of time when the data had yet to be encrypted. But that wasn’t the best, or worst part.

Malware 52

Malware Data breaches Encryption Retail 52

Security Affairs

AUGUST 23, 2018

The campaign appears as targeted and well-planned, crooks targeted several enterprises and encrypted hundreds of PC, storage and data centers in each infected company. Experts highlighted that the encryption scheme of the Ryuk ransomware was built specifically for small-scale operations. ” continues the report. Check Point says.

Ransomware 41

Ransomware Encryption Backups Advertising 41

Security Affairs

JULY 25, 2019

The new variant of the malware is currently undetected by most of the antivirus firms, the incorporation of the BlueKeep scanner suggests that operators would explore financial opportunities on Windows platforms too. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. gooobb ” file. Pierluigi Paganini.

Cryptocurrency 68

Cryptocurrency Internet Internet Malware 68

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.

Malware 86

Malware Computers and Electronics Encryption Penetration Testing 86

Security Affairs

FEBRUARY 7, 2019

It is also known as GOZI, in fact, it is a fork of the original Gozi-ISFB banking Trojan that got its source code leaked in 2014 updating and evolving Gozi features over the years. The server responds to this request sending encrypted data, as show in the following figure. Part of network traffic containing some encrypted data.

Banking 88

Banking Malware Advertising Encryption 88

Security Affairs

OCTOBER 12, 2019

. “The first of FIN7’s new tools is BOOSTWRITE – an in-memory-only dropper that decrypts embedded payloads using an encryption key retrieved from a remote server at runtime. ” ~ Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Pierluigi Paganini. SecurityAffairs – FIN7, hacking).

Identity Theft 74

Identity Theft Hacking Advertising DNS 74

Security Affairs

JANUARY 29, 2021

The activity of the Zinc APT group, aka Lazarus, surged in 2014 and 2015, its members used mostly custom-tailored malware in their attacks. In one case, attackers attempted to exploit, without success, the CVE-2017-16238 vulnerability in a vulnerable driver for the antivirus product called Vir.IT

Malware 112

Malware Antivirus Hacking Accountability 112

Security Affairs

AUGUST 20, 2019

VPN also provides an encrypted tunnel for all your online activities and closes all doors for spies and cybercriminals. It is essential to install firewall and antivirus software on your routers and keep them up-to-date. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Secure Your Router.

Hacking 89

Hacking VPN Internet Internet 89

Security Affairs

MARCH 26, 2019

The VBS code is obfuscated to evade antivirus detection and, in order to confuse the analyst, all the values are manipulated in different steps: using many mathematical operations, very long random variable names and other content encoded in Base64 format. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

Malware 84

Malware Antivirus Advertising Encryption 84

Security Affairs

JANUARY 29, 2019

Then, all the information is encoded in Base64 and sent to the C2 through the “ connect ” function, using a SSL encrypted HTTP channel. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Copyright (C) 2014 Media.net Advertising FZ-LLC All Rights Reserved -->. AutoIt script’s main function.

Malware 80

Malware Advertising InfoSec Antivirus 80

Security Affairs

APRIL 16, 2019

The malware spreads via Trojanized applications disguised as cracked software, or applications posing as legitimate software such as video players, drivers or even antivirus software. Browsing History Stealer Payload — This payload collects Chrome’s browsing history and sends it to the C&C in an encrypted form. Pierluigi Paganini.

Spyware 69

Spyware Adware Malware Accountability 69

SecureList

JUNE 2, 2022

Layout of the encrypted data. Packets exchanged with the C2 server contain a header (described in the next table) followed by AES-encrypted data. Initial connection: the generated AES key and its CRC32, encrypted using RSA-2048 with a hardcoded public key. x33x44”). Description. Sample value (in hex). Unknown static value.

Malware 113

Malware Encryption Social Engineering Telecommunications 113

Security Affairs

MAY 29, 2019

su”, using an SSL encrypted communication, and stores them in “C:UsersPublic” path: “ rtegre.exe ” and “ wprgxyeqd79.exe Analyzing it in depth, we discover it actually is the RMS (Remote Manipulator System) client by TektonIT , encrypted using the MPress PE compressor utility, a legitimate tool, to avoid antivirus detection.

Retail 67

Retail Banking Advertising Encryption 67

Security Affairs

MAY 23, 2019

Another interesting technique abused by cyber-criminals in the wild is the “ Certificate Spoofing “, allowing malware to easily bypass a relevant portion of anti-virus engines, even if they employ identification techniques theoretically able to detect encrypted and packed threats. Even Symantec AV didn’t detect the sample as malicious!

Antivirus 81

Antivirus Malware Advertising Cyber Attacks 81