updater.bak

Lucky Bright

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

Version:
1.0.5672.3356

MD5:
3114d750a95d15fc1572f4877c184c5b

SHA-1:
a98f7ec33ac5ab27036e1a8eeba254cce39bb49e

SHA-256:
404823cf41f19e3adf817b4db0dbd98aa4f0af5428e5d4d74c0cc13648aceb32

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:
8/12/2020 10:35:02 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.17

File size:
563.2 KB (576,736 bytes)

Product version:
1.0.5672.3356

Common path:
C:\Program Files\common files\2988696b-294c-4054-b34f-e97ca58a10e8\updater.bak

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
6/19/2015 3:00:00 AM

Valid to:
6/19/2016 2:59:59 AM

Subject:
CN=Lucky Bright, O=Lucky Bright, L=Los Angeles, 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:
071EC58D2C0C7C068666729CAC608B70

File PE Metadata
Compilation timestamp:
7/13/2015 11:52:01 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x253E7

Entry point:
E8, 19, D9, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 08, 83, 3C, F5, 20, 45, 48, 00, 00, 75, 13, 56, E8, 71, 00, 00, 00, 59, 85, C0, 75, 08, 6A, 11, E8, 43, 49, 00, 00, 59, FF, 34, F5, 20, 45, 48, 00, FF, 15, 48, 51, 45, 00, 5E, 5D, C3, 56, 57, BE, 20, 45, 48, 00, 8B, FE, 53, 8B, 1F, 85, DB, 74, 17, 83, 7F, 04, 01, 74, 11, 53, FF, 15, 80, 51, 45, 00, 53, E8, EF, 9F, FF, FF, 83, 27, 00, 59, 83, C7, 08, 81, FF, 40, 46, 48, 00, 7C, D8, 5B, 83, 3E, 00, 74, 0E, 83, 7E, 04, 01, 75, 08, FF, 36, FF, 15...
 
[+]

Code size:
335.5 KB (343,552 bytes)

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