This vulnerability can be exploited by the following malware:
https://threats.kaspersky.com/en/threat/Exploit.Script.CVE-2021-26855/
The following public exploits exists for this vulnerability:
https://github.com/sgnls/exchange-0days-202103
https://github.com/soteria-security/HAFNIUM-IOC
https://github.com/cert-lv/exchange_webshell_detection
https://github.com/conjojo/Microsoft_Exchange_Server_SSRF_CVE-2021-26855
https://github.com/pussycat0x/CVE-2021-26855-SSRF
https://github.com/0xAbdullah/CVE-2021-26855
https://github.com/Th3eCrow/CVE-2021-26855-SSRF-Exchange
https://github.com/mekhalleh/exchange_proxylogon
https://github.com/Yt1g3r/CVE-2021-26855_SSRF
https://github.com/charlottelatest/CVE-2021-26855
https://github.com/dwisiswant0/proxylogscan
https://github.com/mauricelambert/ExchangeWeaknessTest
https://github.com/DCScoder/Exchange_IOC_Hunter
https://github.com/srvaccount/CVE-2021-26855-PoC
https://github.com/h4x0r-dz/CVE-2021-26855
https://github.com/alt3kx/CVE-2021-26855_PoC
https://github.com/achabahe/CVE-2021-26855
https://github.com/raheel0x01/CVE-2021-26855
https://github.com/hackerschoice/CVE-2021-26855
https://github.com/SCS-Labs/HAFNIUM-Microsoft-Exchange-0day
https://github.com/KotSec/CVE-2021-26855-Scanner
https://github.com/hakivvi/proxylogon
https://github.com/ZephrFish/Exch-CVE-2021-26855
https://github.com/mil1200/ProxyLogon-CVE-2021-26855
https://github.com/evilashz/ExchangeSSRFtoRCEExploit
https://github.com/Mr-xn/CVE-2021-26855-d
https://github.com/RickGeex/ProxyLogon
https://github.com/Immersive-Labs-Sec/ProxyLogon
https://github.com/shacojx/Scan-Vuln-CVE-2021-26855
https://github.com/SotirisKar/CVE-2021-26855
https://github.com/TaroballzChen/ProxyLogon-CVE-2021-26855-metasploit
https://github.com/p0wershe11/ProxyLogon
https://github.com/r0ckysec/CVE-2021-26855_Exchange
https://github.com/shacojx/CVE-2021-26855-exploit-Exchange
https://github.com/hictf/CVE-2021-26855-CVE-2021-27065
https://github.com/praetorian-inc/proxylogon-exploit
https://github.com/Flangvik/SharpProxyLogon
https://github.com/hosch3n/ProxyVulns
https://github.com/Nick-Yin12/106362522
https://github.com/yaoxiaoangry3/Flangvik
https://github.com/byinarie/Zirconium
https://github.com/hosch3n/ProxyLogon
https://github.com/heikanet/Microsoft-Exchange-RCE
https://github.com/iceberg-N/cve-2021-26855
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