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skype.exe

TRUSTEd download tyy

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application skype.exe by TRUSTEd download tyy has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. It is also typically executed from the user's temporary directory.
Publisher:
TRUSTEd download tyy  (signed and verified)

MD5:
0c329e546333bae31f6dd78f0a091501

SHA-1:
b9e975f75b196cd22a1dc2854df41c5a9c5ee46a

SHA-256:
0da9157015c4753c4e1f85864c535faf770b7b2bc70c240ee56b93d2f3e69150

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
2/24/2025 7:39:52 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
17.2.22.11

File size:
615.4 KB (630,128 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\skype.exe

Digital Signature
Signed by:
TRUSTEd download tyy

Authority:
thawte, Inc.

Valid from:
3/7/2015 4:00:00 PM

Valid to:
1/27/2016 3:59:59 PM

Subject:
CN=TRUSTEd download tyy, O=TRUSTEd download tyy, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
629FF6FCB11CAAA5C52EF71432AB5E28

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9485

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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