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ywlui.exe

The executable ywlui.exe has been detected as malware by 23 anti-virus scanners. It runs as a scheduled task under the Windows Task Scheduler triggered daily at a specified time. While running, it connects to the Internet address server-54-192-48-141.jfk5.r.cloudfront.net on port 80 using the HTTP protocol.
Version:
5.23.48185.29488

MD5:
f54347d03cba89bf34c16d0221715e53

SHA-1:
36efdd4b22e2f14571b826d0ce5c7219951c3dd8

SHA-256:
b67057186ecb186f1bb9ee9ccf672632d400c4b7aa4e10b0a1d642a02966fff6

Scanner detections:
23 / 68

Status:
Malware

Analysis date:
12/26/2024 7:14:32 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.12088188
776

AhnLab V3 Security
Trojan/Win32.Kovter
2014.11.05

Avira AntiVirus
TR/Crypt.ZPACK.106351
7.11.183.100

avast!
Win32:Dropper-gen [Drp]
141025-0

AVG
Win32/Cryptor
2014.0.4189

Bitdefender
Trojan.Generic.12088188
1.0.20.1770

Bkav FE
HW32.Packed
1.3.0.4959

Dr.Web
Trojan.Siggen6.22973
9.0.1.05190

Emsisoft Anti-Malware
Trojan.Generic.12088188
8.14.12.20.04

ESET NOD32
Win32/Kryptik.CPFY (variant)
8.10669

Fortinet FortiGate
W32/Kryptik.CJJL!tr
12/20/2014

F-Secure
Trojan.Generic.12088188
11.2014-20-12_7

G Data
Trojan.Generic.12088188
14.12.24

Kaspersky
Trojan.Win32.Yakes
15.0.0.494

Malwarebytes
Spyware.Passwords.ED
v2014.11.04.10

McAfee
Packed-CR!B6D45C6C5AF2
5600.6910

NANO AntiVirus
Trojan.Win32.Siggen6.didezr
0.28.6.62995

nProtect
Trojan.Generic.12088188
14.11.05.01

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
Threat.Win.Reputation.IMP
14.12.20.16

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.141102

Sophos
Troj/Yakes-AS
4.98

Vba32 AntiVirus
Heur.Trojan.Hlux
3.12.26.3

File size:
284.7 KB (291,520 bytes)

Product version:
5.23.48185.29488

Original file name:
mkosena.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\roaming\isivup\ywlui.exe

File PE Metadata
Compilation timestamp:
7/8/2011 11:20:10 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:ViBdjLsI9+C2Gd9LAAg9QSyiZTZYfByD1V/mAaEJMXtsUG0TKeC:wDb97yLLZ9YZS1V+AaEJksU2Z

Entry address:
0xD708

Entry point:
55, 8B, EC, 81, EC, C4, 01, 00, 00, BA, A3, 00, 00, 00, EB, 27, 03, F3, 8B, 05, A0, 4A, 43, 00, F7, C6, 06, 1B, 00, 00, 75, 17, 33, F2, 3B, 35, 38, 4A, 43, 00, 74, 0D, 83, EE, 16, 3B, F0, 74, 06, 89, B5, 3C, FE, FF, FF, 53, 0B, C6, 3B, 85, 68, FE, FF, FF, 74, 08, 2B, C6, 89, 85, 6C, FE, FF, FF, 56, 83, F0, CE, 3B, C6, 75, 20, B9, 80, 00, 00, 00, 89, 85, 9C, FE, FF, FF, 33, CE, EB, 11, 83, C1, 99, 8B, FE, 89, 8D, 14, FF, FF, FF, 89, BD, BC, FE, FF, FF, 57, EB, 06, 89, 8D, 84, FE, FF, FF, EB, 05, EB, 03, 89...
 
[+]

Entropy:
7.9052

Developed / compiled with:
Microsoft Visual C++

Code size:
100 KB (102,400 bytes)

Scheduled Task
Task name:
Security Center Update - 1347748440

Trigger:
Daily (Runs daily at 11:00 AM)

Description:
Keeps your Security Center software up to date. If this task is disabled or stopped, your Security Center software will not be kept up to date, meanin


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to server-54-230-50-232.jfk5.r.cloudfront.net  (54.230.50.232:80)

TCP (HTTP):
Connects to server-54-230-48-184.jfk5.r.cloudfront.net  (54.230.48.184:80)

TCP (HTTP):
Connects to server-54-192-48-141.jfk5.r.cloudfront.net  (54.192.48.141:80)

TCP (HTTP):
Connects to oasn04a.247realmedia.com  (208.71.121.194:80)

TCP (HTTP):
Connects to na.gmtdmp.com  (208.71.121.14:80)

TCP (HTTP):
Connects to lga15s43-in-f24.1e100.net  (74.125.226.56:80)

TCP (HTTP):
Connects to ec2-54-243-236-69.compute-1.amazonaws.com  (54.243.236.69:80)

TCP (HTTP):
Connects to ec2-54-243-107-161.compute-1.amazonaws.com  (54.243.107.161:80)

TCP (HTTP):
Connects to ec2-23-21-105-35.compute-1.amazonaws.com  (23.21.105.35:80)

TCP (HTTP):
Connects to a23-66-230-161.deploy.static.akamaitechnologies.com  (23.66.230.161:80)

TCP (HTTP):
Connects to a23-62-236-128.deploy.static.akamaitechnologies.com  (23.62.236.128:80)

TCP (HTTP):
Connects to a23-62-236-121.deploy.static.akamaitechnologies.com  (23.62.236.121:80)

TCP (HTTP):
Connects to a23-44-121-208.deploy.static.akamaitechnologies.com  (23.44.121.208:80)

TCP (HTTP):
Connects to a23-44-116-94.deploy.static.akamaitechnologies.com  (23.44.116.94:80)

TCP (HTTP SSL):
Connects to a23-203-164-42.deploy.static.akamaitechnologies.com  (23.203.164.42:443)

TCP (HTTP):
Connects to 114.37.198-178.dc74.net  (198.37.114.178:80)

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