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 25, 2023Severity Medium 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 […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]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 25, 2023Severity Medium 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 […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]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 – Formbook Harvests Financial Data using Phishing
September 25, 2019Rewterz Threat Alert – Phishing Attack Uses Google Redirects to Evade Detection
September 26, 2019
Severity
Medium
Analysis Summary
Quasar is a publicly-available Remote Access Tool (RAT) for Windows hosts. This RAT is being distributed as malware through malicious spam (malspam). This is an invoice themed malspam posing to be coming from Emirates Industrial City. Below is a screenshot of the email from isc institute.
Impact
- Unauthorized Access
- Remote Code Execution
Indicators of Compromise
IP(s) / Hostname(s)
- 192[.]3[.]204[.]194
- 45[.]74[.]60[.]135
URLs
- hxxs[:]//www[.]tradersbolt[.]com/126/invoice1[.]exe
- mail[.]totallyanonymous[.]com
- www[.]tradersbolt[.]com
- ip-api[.]com
- greatest.ddns[.]net
- puu[.]sh
- icanhazip[.]com
Email Address
- tpwilkins[@]yahoo[.]co[.]jp
- alsaqr3[@]eim.ae
Email Subject
- Hello [Target’s name] Urgent Account details confirmation for payment
Malware Hash (MD5/SHA1/SH256)
- abc980ebd2463ff522ff090914cc21d02915f643f385ee0ea0af23d51a18e47f
- 36bbba67af90faf31808412008c61db3
- 065ac3f23800921135b1794706aca86ab59c94ab463c5c17a4d3535bf9aab828
- 101e6dfba90b9b82a23caf5e47f72e97
- 389863b056fa0c3d4ebf130103445bc56769824f1e6cecea9c950744b80752b0
- 28a627d45425192d6f28fd0d324445d7
- edcbbb59405b2bb97269ed5db32a15b57154221adb9504ff828ee367953cccc1
- dd53b81b262364cd0051cdeb3bd54c7d
Remediation
- Block the threat indicators at their respective controls.
- Do not download email attachments coming from untrusted sources.