updater.bak

Web United

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file updater.bak by Web United has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Web United  (signed and verified)

Version:
1.0.5559.10077

MD5:
657ed3ba7acce831647ca232a6497635

SHA-1:
0105089b7af7401d5b7f27f83b084e59a6f29b8a

SHA-256:
edd4228d3f1b2d957d6c91bb52b713637c930d4a601915e4155723be884b39c0

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
8/11/2020 9:53:02 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo
17.3.4.14

File size:
422.7 KB (432,880 bytes)

Product version:
1.0.5559.10077

Common path:
C:\Program Files\common files\dbf593b3-8a1d-418e-aa4d-3a3ecb7e1709\updater.bak

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
12/12/2014 9:00:00 AM

Valid to:
12/13/2015 8:59:59 AM

Subject:
CN=Web United, O=Web United, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
067F6E1F1D47FD4673122535E58BAC13

File PE Metadata
Compilation timestamp:
3/22/2015 9:36:01 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x1C94A

Entry point:
E8, 4C, D3, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 7F, 0F, B6, 44, 24, 08, 0F, BA, 25, 20, 52, 46, 00, 01, 73, 0D, 8B, 4C, 24, 0C, 57, 8B, 7C, 24, 08, F3, AA, EB, 5D, 8B, 54, 24, 0C, 81, FA, 80, 00, 00, 00, 7C, 0E, 0F, BA, 25, 94, 38, 46, 00, 01, 0F, 82, 7F, D4, 00, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03...
 
[+]

Entropy:
6.4843

Code size:
311 KB (318,464 bytes)

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