Tag Archives: Windows

RemotePotato0: Privilege Escalation Vulnerability in Windows RPC Protocol

[German]Every Windows system is vulnerable to a specific NTLM relay attack that could allow attackers to escalate privileges from user to domain admin. This vulnerability has a status of "not being fixed" and was the subject of the PetitPotam approach … Continue reading

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LemonDuck and LemonCat malware boost activity

[German]LemonDuck and LemonCat is malware that both acts as a bot and mines crypto-money. LemonDuck can run on different platforms (Linux, Windows), threatening machines on corporate networks. According to Microsoft, this malware has been poorly documented so far, which is … Continue reading

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PetitPotam attack allows Windows domain takeover

[German]There is a new attack vector called PetitPotam. This enables a threat actor to launch an NTLM relay attack on domain controllers. Ultimately, this can be used to take over entire domains. Since many organizations run domain controllers with Microsoft … Continue reading

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PrintNightmare: Point-and-Print allows installation of arbitrary files

[German]Regarding the problem, originally called PrintNightmare, that Windows systems are vulnerable via the print spooler service, there is a new warning. A remote print server that can be accessed by unauthorized parties allows arbitrary malicious files to be installed on … Continue reading

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DevilsTongue spyware from Israeli company Candiru exploited Windows vulnerabilities

[German]After I just reported about spy Trojans of the Israeli NSO Group on smartphones (see Pegasus spy software of NSO Group on many smartphones), I can also reveal the second case. The Israeli company Candiru exploited vulnerabilities in Windows to … Continue reading

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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...


Security Settings for Failover Clustering

[German]Security is at the forefront of many administrator's minds and with Failover Clustering. Microsoft did some improvements with Windows Server 2019 and Azure Stack HCI with regards to security.

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Microsoft Defender for Identity can detect PrintNightmare attacks

[German]Microsoft Defender for Identity (formerly Azure Advanced Threat Protection or Azure ATP) has been given the ability by Microsoft to detect and defend against attacks via the PrintNightmare vulnerability. This primarily affects exploitation of vulnerabilities in the Windows Print Spooler … Continue reading

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Windows vulnerability PrintNightmare: It's not over yet (July 15, 2021)

[German]Bad news for Windows users, because the issue known as PrintNightmare, which vulnerabilities in the Print Spooler service can lead to privilege escalation, still exists. The special updates of July 6 and 7, as well as the regular security updates … Continue reading

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Microsoft Security Update Summary (July 13, 2021)

[German]On July 13, 2021, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for other products – were released. Below is a compact overview of these updates released on the July 2021 patchday.

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Microsoft on PrintNightmare vulnerability CVE-2021-34527: Windows is secure after patch

[German]Microsoft has commented on reports that the unscheduled updates to close the PrintNightmare vulnerability CVE-2021-34527 in the Windows Print Spooler service would not eliminate all risks. The message is that if the special updates are installed and Windows is configured … Continue reading

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