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Email Campaign Spreads StrRAT Fake-Ransomware RAT
Threatpost
MAY 21, 2021
Microsoft Security discovered malicious PDFs that download Java-based StrRAT, which can steal credentials and change file names but doesn't actually encrypt.
File names Related Topics 
STRRAT RAT spreads masquerading as ransomware
Security Affairs
MAY 20, 2021
Microsoft warns of a malware campaign that is spreading a RAT dubbed named STRRAT masquerading as ransomware. This RAT is infamous for its ransomware-like behavior of appending the file name extension.crimson to files without actually encrypting them.
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Integrating AWS S3 and Windows PowerShell to Download and Rename Files
Perficient Data & Analytics
MARCH 13, 2020
You may change the profile name to whatever you like. Downloading and Renaming Files from AWS S3 using PowerShell. Define the bucket you would like to download the files from. Define the folder within the bucket you would like to download the files from.
Details of the REvil Ransomware Attack
Schneier on Security
JULY 8, 2021
After writing a base-64-encoded payload to a file named agent.crt the dropper executed it. […]. The ransomware dropper Agent.exe is signed with a Windows-trusted certificate that uses the registrant name “PB03 TRANSPORT LTD.”
New COVID19 wiper overwrites MBR making computers unusable
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.
Nemty ransomware “LOVE_YOU” malspam campaign
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 ransomware deletes shadow copies of encrypted files to make in impossible any recovery procedure.
Hack of DNA website exposes data from 92M accounts
Information Management Resources
JUNE 7, 2018
MyHeritage received a message from a researcher who unearthed a file named 'myheritage' containing email addresses and encrypted passwords of nearly all of its users on a private server outside the company. Hacking Data security Cyber security Cyber attacks
FBI published a flash alert on Mamba Ransomware attacks
Security Affairs
MARCH 26, 2021
Mamba ransomware is one of the first malware that encrypted hard drives rather than files that was detected in public attacks. Mamba leverages a disk-level encryption strategy instead of the conventional file-based one. Payment does not guarantee files will be recovered.
Sony Bravia Smart TVs affected by a critical vulnerability
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. The application handles file names incorrectly when receiving a user’s input file via uploading a URL. A attacker can upload an arbitrary file with a crafted file name (e.g.: /./)
Introducing the PhishingKitTracker
Security Affairs
JULY 17, 2020
Almost every file into the raw folder is malicious so I strongly recommend you to neither open these files, nor misuse the code to prank your friends. NB: Large File System Hahead. This folder is tracked by using Git Large File System since many files are bigger than 100MB.
New ransomware group Hive leaks Altus group sample files
Security Affairs
JUNE 26, 2021
On June 14th, Altus Group, a commercial real estate software solutions firm, disclosed a security breach, now Hive ransomware gang leaked its files. Files leaked online. The sample archive is password protected – but the file names and types are clearly visible.
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BlackWater, a malware that uses Cloudflare Workers for C2 Communication
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.
BlackCocaine Ransomware, a new malware in the threat landscape
Security Affairs
JUNE 5, 2021
“The WHOIS information for the domain reveals that the domain of the BlackCocaine ransomware was registered on May 28, 2021” The researchers reported that a file named a.BlackCocaine was recently submitted to different public sandboxes.
Emsisoft released a new free decryption tool for the Avest ransomware
Security Affairs
SEPTEMBER 27, 2019
The Avest ransomware encrypts victim’s files and appends the extension “ ckey().email().pack14” The decryption tool could be used by the victims only after they have successfully removed the malware from their system to avoid that the Avest ransomware will repeatedly lock the machine or will encrypt files. ransomware to decrypt their files for free.
Proactively Protecting Your Sensitive Information for Remote Workers
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.
Microsoft warns of Dexphot miner, an interesting polymorphic threat
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.
South Korea suffers from the spread of people infected with Corona 19
Security Affairs
FEBRUARY 25, 2020
The malware found is an executable program (EXE) using file names such as ‘Corona’s domestic status’ and ‘Corona’s real-time corona status.’
A new Shamoon 3 sample uploaded to VirusTotal from France
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. As observed in previous Shamoon samples the internal file name invokes a known PC tool, likely as a lure to allay initial user suspicion.”
B0r0nt0K ransomware demands $75,000 ransom to the victims
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. “The file’s name will also be renamed by encrypting the filename, base64 encoding it, url encoding it, and finally appending the.rontok extension to the new file name.
A new Linux Botnet abuses IaC Tools to spread and other emerging techniques
Security Affairs
APRIL 23, 2021
Experts highlighted that this Linux botnet downloads all the files it needs from the Tor network, including legitimate binaries like ss , ps , and curl.
ToxicEye RAT exploits Telegram communications to steal data from victims
Security Affairs
APRIL 24, 2021
Threat actors behind ToxicEye spread the RAT via phishing emails containing a malicious.exe file. Researchers noticed that that the ToxicEye RAT configuration file includes a Telegram bot that is compiled into an executable file.
Magecart gang hides PHP-based web shells in favicons
Security Affairs
MAY 14, 2021
The file named Magento.png attempts to pass itself as ‘image/png’ but does not have the proper PNG format for a valid image file.” Threat actors edited the shortcut icon tags with a path to the fake PNG file.
Crackonosh Monero miner made $2M after infecting 222,000 Win systems
Security Affairs
JUNE 27, 2021
Upon rebooting the system, Crackonosh will scan for the existence of antivirus software and will attempt to disable them, the malware also wipes log system files. It has names of folders, where they are installed and finally it deletes %PUBLIC%Desktop.”
Hacker breached Perceptics, a US maker of license plate readers
Security Affairs
MAY 26, 2019
Last week, a hacker that goes online with the moniker ‘Boris Bullet-Dodger’ reported the hack to The Register and showing it a list of files as proof of the attack. The hacker stole hundreds of gigabytes of files along with Microsoft Exchange and Access databases, ERP databases, HR records, and Microsoft SQL Server data stores. “The file names and accompanying directories – numbering almost 65,000 – fit with the focus of the surveillance technology biz.”
Nemty ransomware operators launch their data leak site
Security Affairs
MARCH 3, 2020
Nemty ransomware first appeared on the threat landscape in August 2019, the name of the malware comes after the extension it adds to the encrypted file names. The ransomware deletes shadow copies of encrypted files to make in impossible any recovery procedure.
Operators behind Nefilim Ransomware threaten to release stolen data
Security Affairs
MARCH 17, 2020
Nefilim will encrypt a file using AES-128 encryption, then the AES encryption key is encrypted using an RSA-2048 public key that is embedded in the ransomware executable. The encrypted AES key will be included in the contents of each encrypted file.
Cyber Threats Observatory Gets Improvements
Security Affairs
MAY 3, 2020
The main improvement sees the introduction of clustering stereotypes for each tracked malware family in three different behaviors: Domains , Files and Processes. Based on the magic file bytes this graph would track the percentages of file types that Malware used as carrier.
Hades ransomware gang targets big organizations in the US
Security Affairs
MARCH 26, 2021
Experts noticed that each Hades ransomware sample uses a different extension to files that it encrypts and drops a ransom note with file name “HOW-TO-DECRYPT-[extension].txt”.
New KilllSomeOne APT group leverages DLL side-loading
Security Affairs
NOVEMBER 5, 2020
The name KilllSomeOne comes from the phrase ‘KilllSomeOne’ used in the DLL side-loading attacks, the group is using poorly-written English messages relating to political subjects. . “In both of these cases, the payload is stored in the file named Groza_1.dat.
New variant of Dridex banking Trojan implements polymorphism
Security Affairs
JULY 1, 2019
In attacks observed on June 17, the malware was using 64-bit DLLs with file names loaded by legitimate Windows system executables. Duncan pointed out that file paths, file names, and associated hashes would change at every computer login. Security researchers at eSentire tracked a new campaign spreading a variant of the Dridex banking Trojan that shows polymorphism.
New Cyber Attack Campaign Leverages the COVID-19 Infodemic
Security Affairs
FEBRUARY 26, 2020
During our Threat Intelligence activities we noticed a suspicions artifact named “ CoronaVirusSafetyMeasures_pdf ”, so, intrigued by its name and by its recent submission on Yomi Hunter ( LINK ), we decided to deep dive into it. Figure 3: Dashboard of the file hosting service used.
Best Practices for Organizing Business Files
OneHub
DECEMBER 17, 2020
Tired of digging through an endless sea of folders and files to find that one document you need? In addition to costing your company money and stressing out your employees, a poor file structure can jeopardize the security of your files and make onboarding new hires a messy process.
Announcing PSIsafe 12 with Advanced Indexing & Search Functionality
Document Imaging Report
OCTOBER 21, 2020
Other document management software applications act like electronic filing cabinets and you can only search based on keywords located in document file names. Auto-generate file names from document metadata.
Himera and AbSent-Loader Leverage Covid19 lures
Security Affairs
MAY 29, 2020
Absent-Loader does that and despite its name behaves this way. Following, the static information of this file: Name Covid-19-PESANTATION.doc Thus, once clicked, it allows this malicious document to execute a malicious file named HimeraLoader.exe.
REvil gang threatens to release intimate pictures of celebs who are customers of The Hospital Group
Security Affairs
DECEMBER 26, 2020
We pumped out about 600 gb of the most important documents, personal data of customers, as well as intimate photos of these customers (this is not a completely pleasant sight:))” The ransomware gang plans to post the first batch of files, named “Pacient Personal – 20??
Gootkit delivery platform Gootloader used to deliver additional payloads
Security Affairs
MARCH 1, 2021
“And if that same site visitor clicks the “direct download link” provided on this page, they receive a.zip archive file with a filename that exactly matches the search query terms used in the initial search, which itself contains another file named in precisely the same way.”
Malicious npm packages spotted delivering njRAT Trojan
Security Affairs
DECEMBER 1, 2020
db-json.js “ Both packages were created by the same author last week who masqueraded them as tools to work with JSON files. The script attempted to download and execute a file named patch.exe that was used to install the njRAT remote access trojan.
Cyber Threat Trends Dashboard
Security Affairs
JANUARY 28, 2020
Most of the infosharing activities involved in cybersecurity are mostly focused on Indicator of Compromise such as: URL, IPs, Domains and file hashes which are perfectly used to arm protection tools such as: proxies, ng-firewalls and Antivirus Engines.
China-linked LuminousMoth APT targets entities from Southeast Asia
Security Affairs
JULY 14, 2021
Anyway experts speculate that the actual targets were only a subset of these that included high-profile organizations, namely government entities located both within those countries and abroad.
Shade Ransomware gang shut down operations and releases 750K decryption keys
Security Affairs
APRIL 27, 2020
The ransomware also drops on the Desktop 10 text files, named README1.txt through README10.txt, The README.txt files include instructions to contact the crooks via an email address in order to receive information on how to make the payments.
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