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
September 22, 2023
Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]September 22, 2023
Severity Medium Analysis Summary First discovered in 2016, Revenge RAT is a remote access trojan (RAT) designed to give an attacker complete control over an infected […]September 22, 2023
Severity High Analysis Summary The Konni APT (Advanced Persistent Threat) group is a cyber espionage group that has been active since at least 2014. It is […]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
September 22, 2023
Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]September 22, 2023
Severity Medium Analysis Summary First discovered in 2016, Revenge RAT is a remote access trojan (RAT) designed to give an attacker complete control over an infected […]September 22, 2023
Severity High Analysis Summary The Konni APT (Advanced Persistent Threat) group is a cyber espionage group that has been active since at least 2014. It is […]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 – XLoader macOS Malware Variation Concealed as ‘OfficeNote’ Productivity Software – Active IOCs
August 22, 2023
Rewterz Threat Advisory – Multiple Google Chrome Vulnerabilities
August 23, 2023
Severity
High
Analysis Summary
GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its discovery. GandCrab ransomware encrypts victims’ files and demands ransom money in exchange for decryption keys. GandCrab targets organizations and individuals that use Microsoft Windows-powered PCs. This ransomware has attacked a huge number of systems in India, Chile, Peru, the United States, and the Philippines. This ransomware has been linked to some of the most notorious ransomware outbreaks, resulting in enormous financial losses for victims. To effectively victimize the target, its operators frequently try to imitate reputable services. In January 2020, for example, GandCrab was transmitted in a word document labeled “Flu pandemic warning.doc” that purportedly came from the Centers for Disease Control. The virus is assigned various name by different antivirus software including Trojan.Ransom.GandCrab, Win32/Filecoder.GandCrab, Ransom: Win32/GandCrab, and others
Impact
- Files Encryption
Indicators of Compromise
MD5
- ffd686da1923301cdc6190a15052f15f
- ee7cc21d62fd495198159bbae80dbcc2
- ce4d60928635dd4d4abb874224733f71
- 7e3b2b10d66955465c12da9f2ab43e36
- 4d68c9b40f348262248e55ec972892ab
- 2e0d33ba5dbfa8eccdcbddc0bc3b3390
SHA-256
- 7c91058133a449a21c3032d23853121b90fc990a8f5a33e8eb12497230a49399
- c14ebfc076f06e2194587fd7246a520c648f78c4ed730be88c6f6deb0ae1f70a
- a4fc5a4d4ab1c6834e63f2e3d7e9dcd5e874357c0cb5673215e97d67752b4a8f
- 01aabfaa4177d8d4953a65e8c0d92df98d5eb9a3b8d557a369301660a252f550
- e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f
- f955035242ffa9bde3904e1c51b491ba81b76e16e912c5ed292efcaf55b04c1b
SHA-1
- db2321cd93e92d13269702deabd1e442bf4f4014
- 19f3d53a63dcfc293884006d779471d251c32570
- 831ebe472632005fe56c06d0fd03190bdf76dcf2
- 2ee3d7ce4ec3461026e910fdfcf9d18dd43eb380
- d9fd5b8bc91c27842731a8cb3ac43fd41502b32a
- f9becff777f42eb77db9cf3f5f77f1be7e3fa880
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.
- Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.
- Along with network and system hardening, code hardening should be implemented within the organization so that their websites and software are secure. Use testing tools to detect any vulnerabilities in the deployed codes.
- Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets