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Example:Īnother file is an encrypted block of data named UNIQUE_ID_DO_NOT_REMOVE. It is worth noting that this key is unique on each run, so, the RSA key pair is generated per victim. The file "PUBLIC" contains a blob with RSA public key. It is dropped inside C:\Users\Public along with some other files: The batch script is responsible for removing the shadow copies and other possible backups: But even if we don't let the batch script be deployed, the main executable proceeds with encryption. The pop-up is deployed in a loop, and by this way it tries to force the user into accepting it. The authors didn't bother to deploy any UAC bypass technique, relying only on social engineering for this. For example, we are asked to run a batch script with administrator privileges: The ransomware is not particularly stealthy-some windows pop up during its run. The ransomware copies itself into %TEMP% under the name svchosta.exe and redeploys itself from that location. The payload from this attack is Hermes ransomware, version 2.1. We had already pinpointed where the redirection was happening by checking the DOM on the live page, but we also confirmed it by decoding the large malicious blurb that went through Base64 and RC4 encoding (we would like to thank David Ledbetter for that). Instead, we found that it was hiding in the main page's source code.
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We replayed this attack in our lab and spent a fair amount of time looking for redirection code within the JavaScript libraries part of the self hosted OpenX server. Based on our records, the first hit happened on February 27, 2018, (01:54 UTC) via a compromised Korean website. According to some reports, it may be a decoy attack and " pseudo-ransomware".īy checking on the indicators published by MDNC, we were able to identify this campaign within our telemetry and noticed that all exploit attempts were made against South Korean users. This payload was formerly used as part of an attack on a Taiwanese bank and suspected to be the work of a North Korean hacking group. On March 9th, MDNC discovered that a less common, but more sophisticated exploit kit called GreenFlash Sundown had started to use this recent Flash zero-day to distribute the Hermes ransomware.
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Indeed, in our previous blog post about this vulnerability (CVE-2018-4878), we showed how trivial it was to use an already available Proof-of-Concept and package it as as a drive-by download instead. While spam has been an active distribution channel for some time now, the news of a Flash exploit would most certainly interest exploit kit authors as well. Only a couple of weeks after the public announcement, spam campaigns were already beginning to pump out malicious Word documents containing the newly available exploit.
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An ISO file is a single file that is a perfect replica of a CD or DVD.ĬDBurnerXP is compatible with Windows 10, 8, 7, Vista, 2003, XP, and 2000.This blog post was authored by Jérôme Segura and Vasilios Hioureas.Īt the end of January, the South Korean Emergency Response Team (KrCERT) published news of a Flash Player zero-day used in targeted attacks. The flaw, which exists in Flash Player 28.0.0.137 and below, was distributed via malicious Office documents containing the embedded Flash exploit.
#Cd r backup player j2k download software#
The software includes a feature to burn and create ISO files to CD. This free burning software also comes with a convenient integrated audio player to play your music. CDBurnerXP can be installed on most versions of Windows and offers a user-friendly multilanguage interface.Ī neat feature of CDBurnerXP is its ability to directly add tracks to your compilation from audio CDs without having to rip the tracks first. You can burn audio CDs or data CDs in MP3, AAC, OGG, WAV, FLAC, ALAC, and other formats. If you prefer not to do that, one of the other options on this list might be a better choice for you.ĬDBurnerXP supports burning to several types of optical media discs, including DVD, CD, HD-DVD, and Blu-ray. We strongly recommend you do a custom installation of this application and deselect ALL options except for the core CDBurnerXP application (which is safe). There are some reports that one of the applications (OpenCandy) that is bundled with CDBurnerXP is malware.
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