21c63c073dae48cc95ab.dll

fassurun

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module 21c63c073dae48cc95ab.dll by fassurun has been detected as adware by 23 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
fassurun  (signed and verified)

MD5:
88a37afc26fda3a5b0ed0893e95f65bf

SHA-1:
a709096b076d26fb43765b6e73836778c732e00e

SHA-256:
8764504979e7806596aabbebc490ce22019ff60098c1abea00e60f874465ced1

Scanner detections:
23 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/20/2024 3:31:45 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.K
856

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Win-PUP/Swiftbrowse.195352
2014.10.02

Avira AntiVirus
Adware/BrowseFox.A.1099
7.11.176.28

AVG
Fasuru
2015.0.3334

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14102

Bitdefender
Adware.BrowseFox.K
1.0.20.1375

Clam AntiVirus
Win.Adware.Swiftbrowse-86
0.98/19466

Dr.Web
Trojan.BPlug.100
9.0.1.05190

Emsisoft Anti-Malware
Adware.BrowseFox.K
8.14.10.02.06

ESET NOD32
Win32/BrowseFox.N potentially unwanted application
7.0.302.0

F-Prot
W32/A-d34eca05
v6.4.7.1.166

F-Secure
Adware.BrowseFox.K
11.2014-02-10_5

G Data
Adware.BrowseFox
14.10.24

McAfee
BrowseFox
5600.6990

MicroWorld eScan
Adware.BrowseFox.K
15.0.0.825

NANO AntiVirus
Riskware.Win32.Agent.dedjsz
0.28.2.62440

nProtect
Trojan-Clicker/W32.Agent.195352
14.10.02.01

Reason Heuristics
PUP.fassurun.U
14.10.2.6

Sophos
Browse Fox
4.98

Vba32 AntiVirus
AdWare.Agent
3.12.26.3

VIPRE Antivirus
Threat.4150696
33120

Zillya! Antivirus
Adware.Kranet.Win32.76
2.0.0.1940

File size:
190.8 KB (195,352 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\fassurun\bin\21c63c073dae48cc95ab.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
8/20/2013 5:00:00 PM

Valid to:
8/20/2015 4:59:59 PM

Subject:
CN=fassurun, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=fassurun, 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:
6EA3A2D62F7379560AF4974E60282338

File PE Metadata
Compilation timestamp:
8/13/2014 11:56:42 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:C3A11Je0OVsR00frsTbnFe/UpM1qLZ+GQ+1m2E/TJLhCbP65jxpd:C3Qa0lOnFe/+pZ+G/1m2cTnCbiJjd

Entry address:
0x11CBD

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 71, 7C, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, D0, 45, 02, 10, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 34, 40, 02, 10, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 51, 53, 8B, 45, 0C, 83, C0, 0C, 89, 45, FC, 64...
 
[+]

Entropy:
6.5543

Code size:
140 KB (143,360 bytes)

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