Kannst du dann bitte mal die beiden Sachen aus Beitrag #10 umsetzen?
Ja, hier:
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# Malwarebytes AdwCleaner 7.1.1.0
# -------------------------------
# Build:    04-27-2018
# Database: 2018-04-24.1
# Support:  https://www.malwarebytes.com/support
#
# -------------------------------
# Mode: Scan
# -------------------------------
# Start:    06-01-2018
# Duration: 00:00:34
# OS:       Windows 8.1 Pro
# Scanned:  40734
# Detected: 1
***** [ Services ] *****
No malicious services found.
***** [ Folders ] *****
No malicious folders found.
***** [ Files ] *****
No malicious files found.
***** [ DLL ] *****
No malicious DLLs found.
***** [ WMI ] *****
No malicious WMI found.
***** [ Shortcuts ] *****
No malicious shortcuts found.
***** [ Tasks ] *****
No malicious tasks found.
***** [ Registry ] *****
No malicious registry entries found.
***** [ Chromium (and derivatives) ] *****
No malicious Chromium entries found.
***** [ Chromium URLs ] *****
No malicious Chromium URLs found.
***** [ Firefox (and derivatives) ] *****
PUP.Optional.Legacy __MSG_appName__
***** [ Firefox URLs ] *****
No malicious Firefox URLs found.
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