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Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
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March 15, 2023Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]March 15, 2023Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]March 15, 2023Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
March 15, 2023Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]March 15, 2023Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]March 15, 2023Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – SmokeLoader Malware – Active IOCs
January 7, 2023Rewterz Threat Alert – Cobalt Strike Malware – Active IOCs
January 8, 2023
Severity
High
Analysis Summary
The STOP/DJVU ransomware initially made headlines in 2018 and has since been attacking individuals all around the world. It’s widespread on torrent sites and other platforms in software crack packages and adware bundles. The STOP/DJVU ransomware is a Trojan that encrypts files. It infiltrates your computer invisibly and encrypts all of your data, making them unavailable to you. It leaves a ransom letter warning which demands money in exchange for decrypting your data and making them available to you again. Malware is delivered via cracked applications, fake set-up apps keygens, activators, and Windows updates. It does not utilize local information like keyboard layouts or timezone settings to prevent infecting victims in certain countries; instead, it uses the information returned by a request to https[:]//api.2ip.ua/geo.json. The card’s MAC address is utilized to provide unique identification for the system. This identity is provided to STOP’s command and control server, which responded with an RSA-2048 public key for encryption. Additional malware, including an information stealer known as Vidar, is then downloaded and installed.
Impact
- Information Theft
- File Encryption
Indicators of Compromise
MD5
- 31ab55838ad60dcce8fc22ff24614d76
- e4abac89f0c02ab08125acc019535b2e
- ad11601c8003994fea9cf502f77cefd8
- 27b2b0f56a96792e4a87799bc5983d45
- 3ce3405d342902d9ec619ecebb88e7c0
- 950340733bcaea1a64f5b6a0bdaf39d0
- a484413e61615e2aac80d6a3908ee9ff
- fb7d729a0265065108852a71721728ab
SHA-256
- 1e33acddb01d65ddd1dfd0a7c96de5537e84b82b
- e9d43e1c239006b102e4c741523be38e80d082f3
- 78764391ee3ebf81d09b5def7a4436a07bd4cd7b
- 5f18ed76dd5cb6b6820e8384e63d324771227aa6
- ea7a862234245da1b809129099f6ad95de10485e
- 6b6ffba189c8e5bc6014405ab7ebea253704931f
- 84917aa2d1755f054255e916cec417160312e4e7
- 60f45ef61a1971ef56c598e4e7c9ea50a8d3f0e6
SHA-1
- 02265652499a7aa392ce093309463384eeb201df2f0d304c674a25c95aa478b7
- e9a5ec68f8fc481b45d10ff12bb21ebd58d1a607b41f0dda0d00cecc78cd6496
- 8be94d522980679c7121fd86ad6a4aa6dbb303a4b9a821033ce427815e753146
- 27ea6c1905b8177636e0544202ff284bf96f9ca62fc299db8e35a1bb978a5a96
- d625891ffee74dfd088190377c5a0ce2ce8d864319160ad8bd076302f1a30d6f
- b47e1f1ac8309c3dde501f91c6506dc6be7a8eea96c6af38a17d59d0f83aa5a6
- 1fa0eb99a4fdf211342f591f0fd5b281714a136369bd90004f07067d32e91577
- 87a761375ee99ac385661c378c01bda662c93d056a841f14cf6ffd779fb17ef5
Remediation
- Block all threat indicators at your respective controls.
- Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
- Maintain cyber hygiene by updating your anti-virus software and implementing a patch management lifecycle.
- Maintain Offline Backups – In a ransomware attack, the adversary will often delete or encrypt backups if they have access to them. That’s why it’s important to keep offline (preferably off-site), encrypted backups of data and test them regularly.
- Emails from unknown senders should always be treated with caution.
- Never trust or open ” links and attachments received from unknown sources/senders