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.
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.
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.
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.
Medium
Microsoft’s Defender ATP Research team detected a campaign they labeled Dexphot. At that point, the Microsoft team began tracking this campaign which turned out to be a polymorphic attack that deployed files that changed every half hour. Dexphot used multiple levels of obfuscation, encryption, and random file names to evade detection. Once a foothold had been gained on a victim system, it then used fileless techniques to further evade detection and forensics. Legitimately running applications were injected with the malware code to disguise the malicious behavior. Services that monitored the malware’s activity and that executed scheduled tasks to re-infect a system were deployed to ensure that the final payload, a cryptominer, was allowed to continue running. As time went by, the malware was upgraded, new running processes were targeted, and efforts to work around defensive measures were added. Except for the installer portion of the infection, all other executables are legitimate applications, such as msiexec.exe, unzip.exe, rundll32.exe, schtasks.exe, and powershell.exe. Applications targeted for its process hollowing technique included svchost.exe, tracert.exe, and setup.exe.
Coin miner
SHA-256