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Threat Source newsletter (May 11, 2023) — So much for that ransomware decline

Cisco Talos ()5 min read2 · 1 read
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Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2023-24932
Secure Boot Security Feature Bypass Vulnerability
6.711%
CVE-2023-27350
Authentication Bypass Leading to SYSTEM RCE in PaperCut MF/NG
9.8100%KEVRansomwarePoC ×3
KEV
CVE-2023-29336
Use-after-free privilege escalation to SYSTEM in Microsoft Win32k
7.841%KEVPoC
KEV

Indicators of compromise

auto-extracted · verify before use · export allAll
TypeIndicatorContext
md52915b3f8b703eb744fc54c81f4a9c67fd393e0a4109ae189bc64f1f3e312653dcf317a2bd406f18ffcc507 MD5: 2915b3f8b703eb744fc54c81f4a9c67f Typical Filename: VID001.exe Claimed Product: N/A Detection
md53e10a74a7613d1cae4b9749d7ec9351540b49096e2f8f78d646891b45c649473a5b67b8beddac46ad398e1 MD5: 3e10a74a7613d1cae4b9749d7ec93515 Typical Filename: IMG001.exe Claimed Product: N/A Detection
md593fefc3e88ffb78abb36365fa5cf857c81591e9bff5117946defbef6041397e56164f485cf8ec57b1d8934 MD5: 93fefc3e88ffb78abb36365fa5cf857c Typical Filename: Wextract Claimed Product: Internet Explor
md5a087b2e6ec57b08c0d0750c60f96a74ce7e4da97a0ff8e1a0d4840c882569d47b8fab8fb187ac2b475636c MD5: a087b2e6ec57b08c0d0750c60f96a74c Typical Filename: AAct.exe Claimed Product: N/A Detection N
md5df11b3105df8d7c70e7b501e210e3cc3de4839c65b6e6d39ac7a272e2611ec1ed1bf73a4f455e2ca20eeaa MD5: df11b3105df8d7c70e7b501e210e3cc3 Typical Filename: DOC001.exe Claimed Product: N/A Detection
sha2565616b94f1a40b49096e2f8f78d646891b45c649473a5b67b8beddac46ad398e1duct: N/A Detection Name: Win.Worm.Coinminer::1201 SHA 256: 5616b94f1a40b49096e2f8f78d646891b45c649473a5b67b8beddac46ad398e1 MD5: 3e10a74a7613d1cae4b9749d7ec93515 Typical Filename: IMG
sha25659f1e69b68de4839c65b6e6d39ac7a272e2611ec1ed1bf73a4f455e2ca20eeaaion Name: PUA.Win.Trojan.Generic::85.lp.ret.sbx.tg SHA 256: 59f1e69b68de4839c65b6e6d39ac7a272e2611ec1ed1bf73a4f455e2ca20eeaa MD5: df11b3105df8d7c70e7b501e210e3cc3 Typical Filename: DOC
sha2569f1f11a708d393e0a4109ae189bc64f1f3e312653dcf317a2bd406f18ffcc507ware files from Talos telemetry over the past week SHA 256: 9f1f11a708d393e0a4109ae189bc64f1f3e312653dcf317a2bd406f18ffcc507 MD5: 2915b3f8b703eb744fc54c81f4a9c67f Typical Filename: VID
sha256e12b6641d7e7e4da97a0ff8e1a0d4840c882569d47b8fab8fb187ac2b475636cduct: N/A Detection Name: Win.Worm.Coinminer::1201 SHA 256: e12b6641d7e7e4da97a0ff8e1a0d4840c882569d47b8fab8fb187ac2b475636c MD5: a087b2e6ec57b08c0d0750c60f96a74c Typical Filename: AAc
sha256e4973db44081591e9bff5117946defbef6041397e56164f485cf8ec57b1d8934t: N/A Detection Name: Win.Dropper.Coinminer::1201 SHA 256: e4973db44081591e9bff5117946defbef6041397e56164f485cf8ec57b1d8934 MD5: 93fefc3e88ffb78abb36365fa5cf857c Typical Filename: Wex

From the original article

5 min read at blog.talosintelligence.com

Welcome to this week’s edition of the Threat Source newsletter. I wrote a few weeks ago about how, between the public and private sectors, the security community was making some strides in fighting back against ransomware. Reports indicate that revenue for ransomware actors was down in 2022, and recent disruptions to larger ransomware networks like Hive have at least forced some actors offline for now.

Cisco Talos

blog.talosintelligence.com

Read the full article at Cisco Talos

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.