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avisynth.exe

UpdateStar GmbH

The application avisynth.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 10 anti-malware scanners. It uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
1529643e489b393fcad59209327da7a2

SHA-1:
4ea4ac80628a07652958157f72bd7484ec03eba9

SHA-256:
645464cd0bc82e369dc3d894dd1e7c0f062cb1c705518f765fa481a5bf6293e5

Scanner detections:
10 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
4/20/2024 8:54:48 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
PUA/InstallCore.Gen
8.3.1.6

Dr.Web
Trojan.InstallCore.789
9.0.1.05190

ESET NOD32
Win32/InstallCore.AF potentially unwanted application
7.0.302.0

K7 AntiVirus
Trojan
13.204.16011

NANO AntiVirus
Riskware.Win32.InstallCore.dehxrz
0.30.24.1636

Reason Heuristics
PUP.UpdateStarGmbH
15.5.24.1

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.15522

Vba32 AntiVirus
BScope.Malware-Cryptor.InstallCore.2691
3.12.26.4

VIPRE Antivirus
Threat.4788237
40432

File size:
1 MB (1,089,704 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Documents and Settings\{user}\My documents\downloads\avisynth.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
12/1/2011 8:00:00 AM

Valid to:
12/1/2012 7:59:59 AM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, STREET=Hauptstrasse 20, L=Berlin, S=Berlin, PostalCode=10827, C=DE

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4C04D272CAAEF51D5786CA84D80CFB98

File PE Metadata
Compilation timestamp:
6/20/1992 6:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:4+ntc646XRkVmS0q6lXjLupqHXfKA/psm/9KEnAFCcJ7NOVZf3gpSHZz6dIWIfk7:a6jNzXzHPKQ6mVhTfNHZzA/jffmcb

Entry address:
0xCA860

Entry point:
55, 8B, EC, 83, C4, F0, B8, B8, BA, 40, 00, E8, C3, D9, FF, FF, 25, 8C, F1, 47, 00, 8B, C0, FF, 25, 88, F1, 47, 00, 8B, C0, FF, 25, 84, F1, 47, 00, 8B, C0, FF, 25, 80, F1, 47, 00, 8B, C0, FF, 25, 7C, F1, 47, 00, 8B, C0, FF, 25, 78, F1, 47, 00, 8B, C0, FF, 25, 74, F1, 47, 00, 8B, C0, FF, 25, 70, F1, 47, 00, 8B, C0, FF, 25, 6C, F1, 47, 00, 8B, C0, FF, 25, D8, F1, 47, 00, 8B, C0, FF, 25, 68, F1, 47, 00, 8B, C0, FF, 25, 64, F1, 47, 00, 8B, C0, FF, 25, 60, F1, 47, 00, 8B, C0, FF, 25, F0, F1, 47, 00, 8B, C0, FF...
 
[+]

Entropy:
6.9529

Developed / compiled with:
Microsoft Visual C++

Code size:
826 KB (845,824 bytes)

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