Integrating AWS S3 and Windows PowerShell to Download and Rename Files

Perficient Data & Analytics

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.

New COVID19 wiper overwrites MBR making computers unusable

Security Affairs

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.

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Nemty ransomware “LOVE_YOU” malspam campaign

Security Affairs

“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

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

BlackWater, a malware that uses Cloudflare Workers for C2 Communication

Security Affairs

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.

A new Shamoon 3 sample uploaded to VirusTotal from France

Security Affairs

” 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.

Emsisoft released a new free decryption tool for the Avest ransomware

Security Affairs

The Avest ransomware encrypts victim’s files and appends the extension “ ckey().email().pack14” ransomware to decrypt their files for free.

Sony Bravia Smart TVs affected by a critical vulnerability

Security Affairs

“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.: /./)

Microsoft warns of Dexphot miner, an interesting polymorphic threat

Security Affairs

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.

Hacker breached Perceptics, a US maker of license plate readers

Security Affairs

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.

South Korea suffers from the spread of people infected with Corona 19

Security Affairs

The malware found is an executable program (EXE) using file names such as ‘Corona’s domestic status’ and ‘Corona’s real-time corona status.’

Cyber Threats Observatory Gets Improvements

Security Affairs

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.

Operators behind Nefilim Ransomware threaten to release stolen data

Security Affairs

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.

New variant of Dridex banking Trojan implements polymorphism

Security Affairs

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.

Nemty ransomware operators launch their data leak site

Security Affairs

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.

New Cyber Attack Campaign Leverages the COVID-19 Infodemic

Security Affairs

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.

Himera and AbSent-Loader Leverage Covid19 lures

Security Affairs

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.

Shade Ransomware gang shut down operations and releases 750K decryption keys

Security Affairs

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.

Threat Research: More Like This

Adam Shostack

pem”) files which were subsequently renamed to the text file “pense1.txt”. This file is next saved as a portable executable file named “gup.exe” and executed using a version of the certutil.exe tool named “Temptcm.tmp”.).

QNodeService Trojan spreads via fake COVID-19 tax relief

Security Affairs

The phishing messages use Trojan sample associated with a file named “Company PLP_Tax relief due to Covid-19 outbreak CI+PL.jar,” experts from MalwareHunterTeam noticed that the malicious code was only detected by ESET AV. "Company

The Case for Limiting Your Browser Extensions

Krebs on Security

The file it attempted to download — 212b3d4039ab5319ec.js — appears to be named after an affiliate identification number designating a specific account that should get credited for serving advertisements.

The North Korean Kimsuky APT threatens South Korea evolving its TTPs

Security Affairs

The infection starts with a classic executable file with “ scr ” extension, an extension used by Windows to identify Screensaver artifacts. Figure 2: Written file (AutoUpdate.dll) in the “%AppData%LocalTemp” path. scr” file, the document is named “ ??? ??.hwp

IT 111

Thousands of servers infected with the Lilocked Ransomware

Security Affairs

The infection caused the encrypted files to appear in the Google search results. The ransomware encrypts files and appends the. lilocked extension to the file name, then it drops a ransom note named # README.

ObliqueRAT, a new malware employed in attacks on government targets in Southeast Asia

Security Affairs

The maldocs used in this campaign have benign file names such as “Company-Terms.doc”, “DOT_JD_GM.doc.” Ability to exfiltrate files. Ability to drop additional files.

Victims of Planetary Ransomware can decrypt their files for free

Security Affairs

Researchers at Emsisoft developed a decryptor for the Planetary Ransomware family that could allow victims to decrypt their files for free. The latest variant of the Planetary malware appends the.mira extension to the names of the encrypted files. The ransom note, named !!!READ_IT!!!

Cyber Threat Trends Dashboard

Security Affairs

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.

Researcher disclosed a Windows zero-day for the third time in a few months

Security Affairs

The last Windows zero-day flaw disclosed by SandboxEscaper is an arbitrary file read vulnerability that could be exploited by a low-privileged user or a malicious program to read the content of any file on a Windows system.

How to Export Oracle DB Schemas Using SQL Developer

Perficient Data & Analytics

Export Data into Dump Files. Transfer Data Dump Files over to Oracle Cloud Object Storage. Option 1: Swift REST Interface to Upload Files to Oracle Object Storage. Option 2: OCI CLI Utility to Upload Files to Oracle Object Storage.

The SLoad Powershell malspam is expanding to Italy

Security Affairs

A new malspam campaign hit Italy in this days, threat actors are spreading a new variant of a powerful downloader named sLoad. As usual, it comes as a zip file attached to an e-mail, this file contains two elements: A fake shortcut to directory (.lnk

Attackers use a new CoronaVirus Ransomware to cover Kpot Infostealer infections

Security Affairs

The website was distributing a file named WSHSetup.exe, it is the downloader for both the CoronaVirus Ransomware and the Kpot password-stealer. One of these files is, ‘file1.exe,’ which is the Kpot password-stealing Trojan.

SNAKE Ransomware is targeting business networks

Security Affairs

Then the malware encrypts the files on the system, skipping Windows system files and folders. The SNAKE ransomware appends a ransom 5 character string to the files extension (i.e. a file named invoice.doc is encrypted and renamed like invoice.docIksr t.

Emsisoft released a free Decrypter for JSWorm 2.0

Security Affairs

ransomware, thanks to experts at Emsisoft they can decrypt their file for free. Researchers found notable callouts in two different malware samples naming ID Ransomware and several prominent malware researchers: “:HI SIRI, DEMONSLAY AND AMIIIIGO!!! “Its files have the “.[ID-<numbers>][<email>].JSWORM”

Shared Drive Cleanup Success Story

The Texas Record

Over the years, staff had tried to maintain order by naming folders by the record type listed on the retention schedule, using idiosyncratic naming conventions, and attempting to create high level folders for staff to save their files in. Creation of README Files (PDF).

Specially Crafted ZIP archives allow bypassing secure email gateways

Security Affairs

Attackers have devised a new technique to distribute malware bypassing secure email gateways and other security solutions by using a specially crafted ZIP file. “The ZIP file had a file size significantly greater than that of its uncompressed content.

Malware researchers decrypted the Qrypter Payload

Security Affairs

This messages warned the users about imminent summons against them, inviting them to read the attached lawsuit, a not so innocent looking file named “ Avviso del tribunale.jar ”. The JAR file seems to be corrupted due to the absence of some classes. Encrypted file content.

Crooks spread malware via pirated movies during COVID-19 outbreak

Security Affairs

We saw an active coin miner campaign that inserts a malicious VBScript into ZIP files posing as movie downloads. Experts observed an ongoing coin miner campaign that injects a malicious VBScript into ZIP files posing as movie downloads.

Researchers released a free decryptor for the Nemty Ransomware

Security Affairs

Good news for the victims of the Nemty Ransomware , security researchers have released a free decryptor that could be used to recover files. The decryptor currently supports only a limited number of file extensions, anyway, researchers are working to improve it and support other file types.

Cr1ptT0r Ransomware targets D-Link NAS Devices and embedded systems

Security Affairs

Once the malware has infected a system drops two plain text files, one is a ransom note called “_FILES_ENCRYPTED_README.txt,” which gives information to the victim on what has happened and instruction to pay the ransom. The second text file named “_cr1ptt0r_support.txt”

WinRAR CVE-2018-20250 flaw exploited in multiple campaigns

Security Affairs

The flaw is an “Absolute Path Traversal” issue in the library that could be exploited to execute arbitrary code by using a specially-crafted file archive. The malicious code allows the attackers to download and execute files on the infected machine.

Nemty Ransomware, a new malware appears in the threat landscape

Security Affairs

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.