A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
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ISC StormCast for Wednesday, October 27th, 2021
Apple Updates Everything (but no details yet) https://support.apple.com/en-sa/HT201222 Craigslist E-Mail Hijack https://www.inky.com/blog/urgency-mail-relay-serve-phishers-well-on-craigslist UltimaSMS Android Malware https://blog.avast.com/premium-sms-scam-apps-on-play-store-avast Firefox Proxy Malware https://blog.mozilla.org/security/2021/10/25/securing-the-proxy-api-for-firefox-add-ons/
ISC StormCast for Wednesday, October 27th, 2021
Apple Updates Everything (but no details yet) https://support.apple.com/en-sa/HT201222 Craigslist E-Mail Hijack https://www.inky.com/blog/urgency-mail-relay-serve-phishers-well-on-craigslist UltimaSMS Android Malware https://blog.avast.com/premium-sms-scam-apps-on-play-store-avast Firefox Proxy Malware https://blog.mozilla.org/security/2021/10/25/securing-the-proxy-api-for-firefox-add-ons/
ISC StormCast for Tuesday, October 26th, 2021
Decrypting Cobalt Strike Traffic https://isc.sans.edu/forums/diary/Decrypting+Cobalt+Strike+Traffic+With+a+Leaked+Private+Key/27968/ Critical Discourse Vulnerability https://us-cert.cisa.gov/ncas/current-activity/2021/10/24/critical-rce-vulnerability-discourse Discourse Discussion Platform RCE https://github.com/discourse/discourse/security/advisories/GHSA-jcjx-pvpc-qgwq https://0day.click/recipe/discourse-sns-rce/ ua-parser-js malware https://github.com/advisories/GHSA-pjwm-rvh2-c87w Vulnerable Billing Software BillQuick Web Used to Deploy Ransomware https://www.huntress.com/blog/threat-advisory-hackers-are-exploiting-a-vulnerability-in-popular-billing-software-to-deploy-ransomware
ISC StormCast for Tuesday, October 26th, 2021
Decrypting Cobalt Strike Traffic https://isc.sans.edu/forums/diary/Decrypting+Cobalt+Strike+Traffic+With+a+Leaked+Private+Key/27968/ Critical Discourse Vulnerability https://us-cert.cisa.gov/ncas/current-activity/2021/10/24/critical-rce-vulnerability-discourse Discourse Discussion Platform RCE https://github.com/discourse/discourse/security/advisories/GHSA-jcjx-pvpc-qgwq https://0day.click/recipe/discourse-sns-rce/ ua-parser-js malware https://github.com/advisories/GHSA-pjwm-rvh2-c87w Vulnerable Billing Software BillQuick Web Used to Deploy Ransomware https://www.huntress.com/blog/threat-advisory-hackers-are-exploiting-a-vulnerability-in-popular-billing-software-to-deploy-ransomware
ISC StormCast for Monday, October 25th, 2021
Malware Quiz https://isc.sans.edu/forums/diary/October+2021+Contest+Forensic+Challenge/27960/ Odd Zip Files https://isc.sans.edu/forums/diary/Phishing+ZIP+With+Malformed+Filename/27966/ Decrypting Cobalt Strike Configurations Using Known Secret Keys https://blog.nviso.eu/2021/10/21/cobalt-strike-using-known-private-keys-to-decrypt-traffic-part-1/ Tracking BLE Fingerprints https://cseweb.ucsd.edu/~nibhaska/papers/sp22_paper.pdf GPS Software Bug https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug https://isc.sans.edu/forums/diary/Keeping+Track+of+Time+Network+Time+Protocol+and+a+GPSD+Bug/27886/
ISC StormCast for Monday, October 25th, 2021
Malware Quiz https://isc.sans.edu/forums/diary/October+2021+Contest+Forensic+Challenge/27960/ Odd Zip Files https://isc.sans.edu/forums/diary/Phishing+ZIP+With+Malformed+Filename/27966/ Decrypting Cobalt Strike Configurations Using Known Secret Keys https://blog.nviso.eu/2021/10/21/cobalt-strike-using-known-private-keys-to-decrypt-traffic-part-1/ Tracking BLE Fingerprints https://cseweb.ucsd.edu/~nibhaska/papers/sp22_paper.pdf GPS Software Bug https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug https://isc.sans.edu/forums/diary/Keeping+Track+of+Time+Network+Time+Protocol+and+a+GPSD+Bug/27886/
ISC StormCast for Friday, October 22nd, 2021
Stolen Images Evidence Campaign Pushes Sliver Based Malware https://isc.sans.edu/forums/diary/Stolen+Images+Evidence+campaign+pushes+Sliverbased+malware/27954/ FiveSys Rootkit Signed By Microsoft https://www.bitdefender.com/files/News/CaseStudies/study/405/Bitdefender-DT-Whitepaper-Fivesys-creat5699-en-EN.pdf Oracle Critical Patch Update https://www.oracle.com/security-alerts/cpuoct2021.html WinRAR Vulnerability https://swarm.ptsecurity.com/winrars-vulnerable-trialware-when-free-software-isnt-free/ Crypto Mining npm Libraries https://blog.sonatype.com/newly-found-npm-malware-mines-cryptocurrency-on-windows-linux-macos-devices
ISC StormCast for Friday, October 22nd, 2021
Stolen Images Evidence Campaign Pushes Sliver Based Malware https://isc.sans.edu/forums/diary/Stolen+Images+Evidence+campaign+pushes+Sliverbased+malware/27954/ FiveSys Rootkit Signed By Microsoft https://www.bitdefender.com/files/News/CaseStudies/study/405/Bitdefender-DT-Whitepaper-Fivesys-creat5699-en-EN.pdf Oracle Critical Patch Update https://www.oracle.com/security-alerts/cpuoct2021.html WinRAR Vulnerability https://swarm.ptsecurity.com/winrars-vulnerable-trialware-when-free-software-isnt-free/ Crypto Mining npm Libraries https://blog.sonatype.com/newly-found-npm-malware-mines-cryptocurrency-on-windows-linux-macos-devices
ISC StormCast for Thursday, October 21st, 2021
Thanks to Covid 19: New Types of Documents are Lost in the Wild https://isc.sans.edu/forums/diary/Thanks+to+COVID19+New+Types+of+Documents+are+Lost+in+The+Wild/27952/ Google Chrome 95 Released https://chromestatus.com/roadmap Squirrel VM Bug https://thehackernews.com/2021/10/squirrel-engine-bug-could-let-attackers.html BlackByte Decryptor Released https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/blackbyte-ransomware-pt-1-in-depth-analysis/ https://github.com/SpiderLabs/BlackByteDecryptor
ISC StormCast for Thursday, October 21st, 2021
Thanks to Covid 19: New Types of Documents are Lost in the Wild https://isc.sans.edu/forums/diary/Thanks+to+COVID19+New+Types+of+Documents+are+Lost+in+The+Wild/27952/ Google Chrome 95 Released https://chromestatus.com/roadmap Squirrel VM Bug https://thehackernews.com/2021/10/squirrel-engine-bug-could-let-attackers.html BlackByte Decryptor Released https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/blackbyte-ransomware-pt-1-in-depth-analysis/ https://github.com/SpiderLabs/BlackByteDecryptor
ISC StormCast for Wednesday, October 20th, 2021
Can You Make the Great Chinese Firewall Work For You https://isc.sans.edu/forums/diary/Can+you+make+the+Great+Chinese+Firewall+work+for+you/27948/ Fake Government Assistance Websites https://www.ic3.gov/Media/Y2021/PSA211015 TA505 Coming Back https://www.proofpoint.com/us/blog/threat-insight/whatta-ta-ta505-ramps-activity-delivers-new-flawedgrace-variant BlackMatter Ransomware https://us-cert.cisa.gov/ncas/alerts/aa21-291a
ISC StormCast for Wednesday, October 20th, 2021
Can You Make the Great Chinese Firewall Work For You https://isc.sans.edu/forums/diary/Can+you+make+the+Great+Chinese+Firewall+work+for+you/27948/ Fake Government Assistance Websites https://www.ic3.gov/Media/Y2021/PSA211015 TA505 Coming Back https://www.proofpoint.com/us/blog/threat-insight/whatta-ta-ta505-ramps-activity-delivers-new-flawedgrace-variant BlackMatter Ransomware https://us-cert.cisa.gov/ncas/alerts/aa21-291a
ISC StormCast for Tuesday, October 19th, 2021
Malcious PowerShell Script Using Client Certificate Authentication https://isc.sans.edu/forums/diary/Malicious+PowerShell+Using+Client+Certificate+Authentication/27944/ PowerShell Updates https://github.com/PowerShell/Announcements/issues/27 Juniper JunOS Patches https://kb.juniper.net/InfoCenter/index?page=content&channel=SECURITY_ADVISORIES TianFu Cup https://tianfucup.com/en/#canjia
ISC StormCast for Tuesday, October 19th, 2021
Malcious PowerShell Script Using Client Certificate Authentication https://isc.sans.edu/forums/diary/Malicious+PowerShell+Using+Client+Certificate+Authentication/27944/ PowerShell Updates https://github.com/PowerShell/Announcements/issues/27 Juniper JunOS Patches https://kb.juniper.net/InfoCenter/index?page=content&channel=SECURITY_ADVISORIES TianFu Cup https://tianfucup.com/en/#canjia
ISC StormCast for Monday, October 18th, 2021
Active Scanning for Apache Vulnerabilities CVE-2021-41773 and 42013 https://isc.sans.edu/forums/diary/Apache+is+Actively+Scan+for+CVE202141773+CVE202142013/27940/ Warranty Repairs and Non Removable Storage Risks https://isc.sans.edu/forums/diary/Warranty+Repairs+and+NonRemovable+Storage+Risks/27938/ Crypto Wallet Compromised on OpenSea NFT Marketplace https://blog.checkpoint.com/2021/10/13/check-point-software-prevents-theft-of-crypto-wallets-on-opensea-the-worlds-largest-nft-marketplace/ $5.2 Billion worth of Bitcoin Transactions Linked to Ransomware https://www.fincen.gov/sites/default/files/shared/Financial%20Trend%20Analysis_Ransomeware%20508%20FINAL.pdf