Tag: stormcast

SharePoint Servers Exploited via 0-day CVE-2025-53770 Late last week, CodeWhite found a new remote code execution exploit against SharePoint. This vulnerability is now actively exploited. https://isc.sans.edu/diary/Critical+Sharepoint+0Day+Vulnerablity+Exploited+CVE202553770+ToolShell/32122/ Veeam Voicemail Phishing Attackers appear to impersonate VEEAM in recent voicemail-themed phishing attempts. https://isc.sans.edu/diary/Veeam%20Phishing%20via%20Wav%20File/32120 Passkey Phishing Attack A currently active phishing attack takes advantage of the ability to use […]

Hiding Payloads in Linux Extended File Attributes Xavier today looked at ways to hide payloads on Linux, similar to how alternate data streams are used on Windows. Turns out that extended file attributes do the trick, and he presents some scripts to either hide data or find hidden data. https://isc.sans.edu/diary/Hiding%20Payloads%20in%20Linux%20Extended%20File%20Attributes/32116 Cisco Patches Critical Identity Services […]

More Free File Sharing Services Abuse The free file-sharing service catbox.moe is abused by malware. While it officially claims not to allow hosting of executables, it only checks extensions and is easily abused https://isc.sans.edu/diary/More%20Free%20File%20Sharing%20Services%20Abuse/32112 Ongoing SonicWall Secure Mobile Access (SMA) Exploitation Campaign using the OVERSTEP Backdoor A group Google identifies as UNC6148 is exploiting the […]

Keylogger Data Stored in an ADS Xavier came across a keystroke logger that stores data in alternate data streams. The data includes keystroke logs as well as clipboard data https://isc.sans.edu/diary/Keylogger%20Data%20Stored%20in%20an%20ADS/32108 Malvertising Homebrew An attacker has been attempting to trick users into installing a malicious version of Homebrew. The fake software is advertised via paid Google […]

DShield Honeypot Log Volume Increase Within the last few months, there has been a dramatic increase in honeypot log volumes and how often these high volumes are seen. This has not just been from Jesse s residential honeypot, which has historically seen higher log volumes, but from all of the honeypots that Jesse runs. https://isc.sans.edu/diary/DShield+Honeypot+Log+Volume+Increase/32100 […]

Experimental Suspicious Domain Feed Our new experimental suspicious domain feed uses various criteria to identify domains that may be used for phishing or other malicious purposes. https://isc.sans.edu/diary/Experimental%20Suspicious%20Domain%20Feed/32102 Wing FTP Server RCE Vulnerability Exploited CVE-2025-47812 Huntress saw active exploitation of Wing FTP Server remote code execution (CVE-2025-47812) on a customer on July 1, 2025. Organizations running […]

SSH Tunneling in Action: direct-tcp requests Attackers are compromising ssh servers to abuse them as relays. The attacker will configure port forwarding direct-tcp connections to forward traffic to a victim. In this particular case, the Yandex mail server was the primary victim of these attacks. https://isc.sans.edu/diary/SSH%20Tunneling%20in%20Action%3A%20direct-tcp%20requests%20%5BGuest%20Diary%5D/32094 Fortiguard FortiWeb Unauthenticated SQL injection in GUI (CVE-2025-25257) An […]

Setting up Your Own Certificate Authority for Development: Why and How. Some tips on setting up your own internal certificate authority using the smallstep CA. https://isc.sans.edu/diary/Setting%20up%20Your%20Own%20Certificate%20Authority%20for%20Development%3A%20Why%20and%20How./32092 Animation-Driven Tapjacking on Android Attackers can use a click-jacking like trick to trick victims into clicking on animated transparent dialogs opened from other applications. https://taptrap.click/usenix25_taptrap_paper.pdf Adobe Patches Adobe patched […]

Microsoft Patch Tuesday, July 2025 Today, Microsoft released patches for 130 Microsoft vulnerabilities and 9 additional vulnerabilities not part of Microsoft’s portfolio but distributed by Microsoft. 14 of these are rated critical. Only one of the vulnerabilities was disclosed before being patched, and none of the vulnerabilities have so far been exploited. https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%2C%20July%202025/32088 Opposum Attack […]

What s My File Name Malware may use the GetModuleFileName API to detect if it was renamed to a name typical for analysis, like sample.exe or malware.exe https://isc.sans.edu/diary/What%27s%20My%20%28File%29Name%3F/32084 Atomic macOS infostealer adds backdoor for persistent attacks Malware analyst discovered a new version of the Atomic macOS info-stealer (also known as ‚AMOS‘) that comes with a […]