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appmgr.bak

Blue Bulletin

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

Version:
1.0.5761.43181

MD5:
875fee7159f5f0fb7caef27073ab5364

SHA-1:
75ebcbf4d86b1f339a6e08030a4afa1954285d4e

SHA-256:
4bd0bb73ef2a9a169da6bd71bc800febc2f0727cca219982e4098ace197cdf32

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:
5/20/2024 8:16:34 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.4.2

File size:
477.2 KB (488,696 bytes)

Product version:
1.0.5761.43181

Language:
English (United States)

Common path:
C:\ProgramData\appmgr2.08.3510663\appmgr.bak

Digital Signature
Signed by:
Blue Bulletin

Authority:
VeriSign, Inc.

Valid from:
3/10/2015 8:00:00 AM

Valid to:
3/10/2016 7:59:59 AM

Subject:
CN=Blue Bulletin, O=Blue Bulletin, 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:
459DE00598751E09C206703EB0D4191C

File PE Metadata
Compilation timestamp:
10/11/2015 2:59:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x2083A

Entry point:
E8, C5, EB, 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, 70, 99, 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, 40, 4B, 46, 00, 01, 0F, 82, F4, EC, 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:
6.1116

Code size:
317 KB (324,608 bytes)

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