Change logs for security intelligence update version

This page lists newly added and updated threat detections included in security intelligence updates for Windows Defender Antivirus and other Microsoft antimalware. If you don’t find the latest security intelligence update version in the selector below, please refresh this page or let us know us know through the feedback smiley.

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Released on

Added threat detections

No new threat detections added in selected update

Name Severity
trojan:win32/powevis!lnk severe
TrojanDownloader:HTML/DocDownldr.A severe
TrojanDownloader:HTML/DocDownldr.B severe
TrojanDownloader:HTML/DocDownldr.C severe
TrojanDownloader:HTML/DocDownldr.D severe
Adware:Win32/YoBrowser.B high
TrojanDownloader:Win32/DocDownloader.A severe

Updated threat detections

No threat detections updated in selected update

Name Severity
browsermodifier:win32/prifou high
exploit:o97m/cve-2017-11882!rfn severe
exploit:o97m/ddedownloader.o severe
trojan:pdf/phish severe
trojan:win32/bluteal!rfn severe
trojan:win32/casdet!rfn severe
trojan:win32/emotet.ac!bit severe
trojan:win32/eqtonex.f severe
trojan:win32/occamy.c severe
trojandownloader:o97m/donoff severe
trojandownloader:o97m/dornoe.a!ams severe
trojandownloader:o97m/obfuse.dw severe
virtool:win32/vbinject.adb!bit severe
Behavior:Win32/Neoreklami.N severe
Exploit:O97M/CVE-2017-11882 severe
Trojan:Win32/CryptInject severe
FriendlyFiles low
Trojan:Win32/Skeeyah.A!rfn severe
Adware:Win32/Neoreklami high
BrowserModifier:Win32/Foxiebro high
BrowserModifier:Win32/Prifou high
HackTool:Win32/Meterpreter high
Ransom:Win32/LockScreen severe
Trojan:HTML/FakeAlert severe
Trojan:Win32/CryptInject severe