Security Affairs

JUNE 29, 2023

Fortinet started investigating the threat after the discovery of an archive file with a file name in Russian, “Табель учета рабочего времени.zip” (“time sheet” in English). The zip archive contains two files with.exe extension preceded by another document-related extension (double extension). ” concludes the report.

File names 80

File names Archiving IT Security 80

Security Affairs

MARCH 11, 2023

The PlugX backdoor has been used since 2008 by multiple China-linked APT groups, including Mustang Panda , Winnti , and APT41 In the attacks observed by ASEC, once exploited the vulnerability, threat actors executed a PowerShell command to create a file named esetservice.exe.

File names 84

File names Security IT Information Security 84

Security Affairs

FEBRUARY 29, 2024

The ZIP archive contains an HTA file named wine.hta that contains obfuscated JavaScript code. The campaign is characterized by its very low volume and the advanced tactics, techniques, and procedures (TTPs) employed by the threat actors.

Archiving 95

Archiving File names IT Information Security 95

Security Affairs

JUNE 19, 2023

The function writes some C code received from the C2 to a temporary file named tmp.c, that is later compiled to a file named /tmp/.ICE-unix/git After compilation, the file is executed in background with two parameters, also received from C2.” ICE-unix/git using the cc command on Fedora and gcc on Debian.

File names 97

File names Archiving IT Security 97

Security Affairs

FEBRUARY 10, 2024

The researchers noticed that the backdoor contained a plist file named ‘test’. The first variant of the backdoor that was detected in November 2023 was likely a test version that did not support a persistence mechanism. “We identified multiple variants of the embedded Apple script, but all of them are meant for data exfiltration.”

Ransomware 112

Ransomware File names Passwords IT 112

Security Affairs

MAY 31, 2023

Upon analyzing of the impacted UEFI firmware, the researchers identified a file named File Name: 8ccbee6f7858ac6b92ce23594c9e2563ebcef59414b5ac13ebebde0c715971b2.bin .” Firmware security firm Eclypsium said it first detected the anomaly in April 2023. Gigabyte has since acknowledged and addressed the issue.

File names 90

File names Risk Passwords Security 90

Security Affairs

MAY 20, 2021

The Java-based STRRAT RAT was distributed in a massive spam campaign, the malware shows ransomware-like behavior of appending the file name extension.crimson to files without actually encrypting them. The latest version of the Java-based STRRAT malware (1.5) was seen being distributed in a massive email campaign last week.

Ransomware 116

Ransomware File names Encryption Passwords 116

Security Affairs

AUGUST 23, 2023

This downloader was used to install the Korplug backdoor on the infected systems. “The downloader attempted to download a file named update.zip from the following location: [link] continues the report. “The update.zip file is a zlib compressed archive file. This file is not saved on disk.

File names 75

File names Encryption Archiving Information Security 75

Security Affairs

MARCH 17, 2024

All unique passwords are stored in a file named “brute.txt”. In the file “password.txt” we discovered a big RISEPRO banner and the link to the public Telegram channel. RisePro is a C++ info-stealer that has been active since at least 2022, it allows to gathering sensitive data from the infected system.

Passwords 98

Passwords File names Archiving Cybersecurity 98

Security Affairs

MARCH 26, 2021

“Once encrypted, the system displays a ransom note including the actor’s email address, ransomware file name, the host system name, and a place to enter the decryption key.” DiskCryptor is not inherently malicious but has been weaponized.” ” reads the alert published by the FBI.

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Ransomware Encryption File names Passwords 142

Schneier on Security

JANUARY 26, 2022

There’s a new ransomware that targets NAT devices made by QNAP: The attacks started today, January 25th, with QNAP devices suddenly finding their files encrypted and file names appended with a.deadbolt file extension.

Ransomware 85

Ransomware File names Encryption Access 85

AIIM

JULY 8, 2021

This strategy can help keep project files organized among team members and aid in the disposition of documents once a project has been completed. Discovering content on an employee’s workstation by examining meta-data criteria such as file name, type, or age. social security numbers, customer information, etc.).

File names 200

File names Data breaches Risk Privacy 200

National Archives Records Express

JUNE 12, 2023

Metadata Capture Requirements Agencies must adhere to the following metadata capture requirements: Capturing Metadata at the File or Item Level Agencies must capture the metadata specified in paragraphs (c) through (e) of the regulation at the file or item level as part of the digitization project.

Metadata 109

Metadata Digital transformation File names Archiving 109

Security Affairs

SEPTEMBER 10, 2023

. “When receiving a message, uploadTextMessageToService collects its contents, chat/channel title and ID, as well as sender’s name and ID. The collected information is then encrypted and cached into a temporary file named tgsync.s3. The app sends this temporary file to the command server at certain intervals.”

File names 116

File names Personal data Encryption Security 116

Security Affairs

MARCH 2, 2020

. “Attached to each email is a ZIP archive with a name formatted as with only the #s changing,” reads the advisory published by IBM X-Force IRIS. “The hash of the file contained within each of these archives remains the same and is associated with a highly obfuscated JavaScript file named LOVE_YOU.

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Ransomware File names Archiving Encryption 116

The Texas Record

JUNE 26, 2023

Consistency Choose file naming conventions and stick with them. For example, unless an abbreviation is known and widely used, avoid using it in folder or file names. A consistent approach with folder structure and file naming means there is less need for individual interpretation. Be consistent.

Cleanup 40

Cleanup File names ROT Access 40

Security Affairs

APRIL 2, 2020

Upon execution, the wiper drops a series of helper files into a temporary folder, including a BAT file named “coronovirus Installer,” which is responsible for most of the setup work. The BAT file creates a hidden folder named COVID-19, then move the dropped files to it. ” continues the analysis.

File names 105

File names Access IT Security 105

Security Affairs

MARCH 19, 2022

. “The decryptor requires access to a file pair consisting of one encrypted file and the original, unencrypted version of the encrypted file to reconstruct the encryption keys needed to decrypt the rest of your data. This file must be roughly 20KB or larger in size. ” reads the guide for the decryptor.

Ransomware 85

Ransomware File names Encryption Cybersecurity 85

Security Affairs

DECEMBER 6, 2023

The researchers’ approach is simple, when the user activates Lockdown Mode, a file named /fakelockdownmode_on is generated as an indicator, triggering a userspace reboot. The researchers also intercepted other functions, including -[PUILockdownModeController lockdownModeEnabled()], to simulate the presence of this file.

File names 102

File names IT Security Access 102

Security Affairs

FEBRUARY 16, 2024

“killme” : Create a BAT file (see below) with a name based on the current tick count. Then, use the BAT file to delete a file from the disk of the victim machine, e.g., killme <filename> The BAT file is executed via cmd.exe /c <BAT-file-name> bat.

CMS 97

CMS File names Passwords Access 97

Security Affairs

OCTOBER 6, 2018

“This application handles file names incorrectly when the user uploads a media file. ” The third flaw directory-traversal vulnerability tracked as CVE-2018-16594 that relates to the way the Photo Sharing Plus app handles file names. ” reads the blog post published by Fortinet.

File names 88

File names IoT Security IT 88

Security Affairs

DECEMBER 27, 2018

” In the attempt to deceive the victims, attackers used the internal file name “Baidu PC Faster” and the “Baidu WiFi Hotspot Setup” in the description of the file. ” reads the analysis published by Anomali Labs.

File names 90

File names IT Security 90

Security Affairs

OCTOBER 22, 2023

.” A Vietnamese group observed by the researchers used very similar lures and delivery methods in different attacks attempting to deliver: DarkGate Ducktail Lobshot Redline stealer The attack chain began with the download of a file named “Salary and new products.8.4.zip” zip” and the execution of the content.

File names 99

File names Archiving IT Access 99

Security Affairs

JUNE 8, 2022

.” “The vulnerability lies in the Microsoft Diagnostic Tool’s sdiageng.dll library, which takes the attacker-supplied folder path from the package configuration XML file inside the diagcab archive, and copies all files from that folder to a local temporary folder.” ” reads the post published by 0patch.

Security 83

Security File names Libraries Archiving 83

Security Affairs

JANUARY 7, 2022

Once encrypted a file, the ransomware appends the ‘ nightsky ‘ extension to encrypted file names. Researchers from MalwareHunterteam first spotted a new ransomware family dubbed Night Sky that implements a double extortion model in attacks aimed at businesses.

Ransomware 126

Ransomware Encryption File names Communications 126

Security Affairs

AUGUST 25, 2023

In turn the server reply with a success message and a secret unique identifier that is saved in a file named “%APPDATA%Roamingwlanstr-12.bin.” ” Whiffy Recon checks for the WLAN AutoConfig service (WLANSVC) on the infected system and terminates itself if the service name doesn’t exist.

File names 88

File names Access Encryption IT 88

Security Affairs

APRIL 9, 2023

” Wi also published two proof-of-concept (PoC) exploits for this vulnerability that can be used to escape the sandbox to create an empty file named “flag” on the host. . “A threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox.”

Libraries 68

Libraries File names Education Cybersecurity 68

Security Affairs

AUGUST 18, 2023

Each of the archives we were able to retrieve consists of a legitimate executable vulnerable to DLL search order hijacking, a malicious DLL that gets sideloaded by the executable when started, and an encrypted data file named agent.data.” ” reads the analysis published by SentinelOne. IP-based geolocation service.

Archiving 89

Archiving File names Encryption Passwords 89

Security Affairs

SEPTEMBER 2, 2022

Also, a list of all the encrypted files gets stored in a file named wrkman.log.0. Opens <target_file> crypted and writes the encrypted content to it using combination of lseek and write call. Figure 4: Inside the start_routine. Conclusion.

Ransomware 139

Ransomware Encryption File names IT 139

Security Affairs

AUGUST 28, 2023

watchTowr Labs security researchers exploited a pre-authentication upload vulnerability (CVE-2023-36846) to upload an arbitrary PHP file to a restricted directory with a randomised file name. Then they exploited the same vulnerable function to upload a PHP configuration file (.ini)

File names 85

File names Authentication Security Access 85

Security Affairs

FEBRUARY 25, 2019

The ransom encrypts all files and renames them by appending. rontok extension to the file names. According to the popular malware researcher Michael Gillespie , when the B0r0nt0K ransomware encrypts a file it will base64 the encrypted data. ” reported Bleeping Computer. Tweets by demonslay335.

Ransomware 89

Ransomware File names Encryption Access 89

Security Affairs

APRIL 18, 2021

“The attack begins with a PowerShell command to retrieve a file named win_r.zip from another compromised server’s Outlook Web Access logon path (/owa/auth).” ” The attack used a PowerShell command to retrieve a file named win_r.zip from another compromised server’s Outlook Web Access logon path (/owa/auth). .

File names 74

File names Archiving Passwords Communications 74

Security Affairs

NOVEMBER 26, 2019

Layers of obfuscation, encryption, and the use of randomized file names hid the installation process. Polymorphic techniques involve frequently changing identifiable characteristics like file names and types, encryption keys and other artifacts. ”reads the analysis published by Microsoft.

File names 116

File names Encryption Mining Security 116

Security Affairs

MARCH 17, 2022

The malware was first spotted on February 9, 2022, when 360Netlab’s honeypot system captured an unknown ELF file that was spreading by exploiting the Log4J vulnerability. The name B1txor20 is based on the file name “b1t” used for the propagation and the XOR encryption algorithm, and the RC4 algorithm key length of 20 bytes.

Honeypots 122

Honeypots File names Communications Encryption 122

Security Affairs

MARCH 15, 2020

Researchers from MalwareHunterTeam discovered a suspicious RAR file named “COVID-19-” that was being distributed online, likely through phishing emails. "Important The RAR archive contains a file named “Important – COVID-19” that displays a Word icon. "Important – COVID-19.rar"

Communications 107

Communications File names Archiving Phishing 107

Security Affairs

APRIL 5, 2022

The messages use the HTML-file “War criminals of the Russian Federation.htm” as attachment. Upon opening the file, a RAR-archive named “Viyskovi_zlochinci_RU.rar” is created. .

Military 106

Military Phishing File names Archiving 106

Security Affairs

OCTOBER 24, 2022

Upon clicking the “DOWNLOAD” button, the executable file named “AcroRdrDCx642200120169_uk_UA.exe” will be downloaded to the machine. Running the above executable will decode and run the “rmtpak.dll” DLL file which is the ROMCOM RAT.

Ransomware 88

Ransomware Phishing File names IT 88