Win32/LockScreen.ZC (file analysis)

The Win32/LockScreen.ZC is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Win32/LockScreen.ZC virus can do?

Creates RWX memory
A process created a hidden window
Drops a binary and executes it
Performs some HTTP requests
Unconventionial language used in binary resources: Russian
The binary likely contains encrypted or compressed data.
The executable is compressed using UPX
Uses Windows utilities for basic functionality
Installs an hook procedure to monitor for mouse events
Sniffs keystrokes
Attempts to restart the guest VM
Installs itself for autorun at Windows startup
Network activity detected but not expressed in API logs
Uses suspicious command line tools or Windows utilities

Related domains:

edgedl.me.gvt1.com

update.googleapis.com

How to determine Win32/LockScreen.ZC?


File Info:
crc32: A89B761C
md5: f8b83964f956afcb5fffd8e218317908
name: F8B83964F956AFCB5FFFD8E218317908.mlw
sha1: 137ad6e225b93923ad8b53797d06189e5baa3983
sha256: d65bff84d9a3eeda5279930129b608efbd7dee2104702ac405a71734c16a15c8
sha512: efd1c70e976becbec7b7ec24fec65b44166d4f98c43f943eba637396a2d831470ca6d2e79e8f8fea2e2746480f1e46b8b92f139b8905799f2c922abb60683cf8
ssdeep: 768:SNV27gq0zdQeqPD6V4i/Jc+x7zAHNMy+gNZY+XKoJL4PbAko:SuUvdJV9jwu5zAko
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:
0: [No Data]

Win32/LockScreen.ZC also known as:

Bkav	W32.AIDetect.malware2
K7AntiVirus	Trojan ( 0055e4091 )
Lionic	Trojan.Win32.HmBlocker.lwU0
Elastic	malicious (high confidence)
DrWeb	Trojan.Winlock.5384
Cynet	Malicious (score: 100)
ALYac	Dropped:Trojan.Generic.5165977
Cylance	Unsafe
Zillya	Trojan.HmBlocker.Win32.69
Sangfor	Trojan.Win32.Save.a
Alibaba	TrojanDropper:Win32/Wlock.4bbb1d18
K7GW	Trojan ( 0055e4091 )
Cybereason	malicious.4f956a
Cyren	W32/Ransom.E.gen!Eldorado
Symantec	Trojan.Ransomlock.F
ESET-NOD32	a variant of Win32/LockScreen.ZC
APEX	Malicious
Avast	FileRepMalware
ClamAV	Win.Trojan.Agent-929311
Kaspersky	HEUR:Trojan.Win32.Generic
BitDefender	Dropped:Trojan.Generic.5165977
NANO-Antivirus	Trojan.Win32.HmBlocker.cjpvh
MicroWorld-eScan	Dropped:Trojan.Generic.5165977
Tencent	Win32.Trojan.Lockscreen.Efkq
Ad-Aware	Dropped:Trojan.Generic.5165977
Sophos	Mal/Generic-R + Mal/EncPk-ZC
Comodo	TrojWare.Win32.Trojan.Ransom.~C@465pdo
BitDefenderTheta	AI:Packer.34C7B12F1F
VIPRE	Trojan.Win32.Generic!BT
McAfee-GW-Edition	RDN/Ransom.ed
FireEye	Generic.mg.f8b83964f956afcb
Emsisoft	Dropped:Trojan.Generic.5165977 (B)
SentinelOne	Static AI – Malicious PE
Jiangmin	Trojan/HomoBlocker.be
Webroot	W32.Downloader.Gen
Avira	TR/Ransom.Blocker.FY
Antiy-AVL	Trojan/Generic.ASMalwS.6104BB
Microsoft	TrojanDropper:Win32/Wlock.A
Arcabit	Trojan.Generic.D4ED399
ZoneAlarm	HEUR:Trojan.Win32.Generic
GData	Dropped:Trojan.Generic.5165977
McAfee	RDN/Ransom.ed
MAX	malware (ai score=100)
VBA32	BScope.Trojan.Winlock
Panda	Trj/CI.A
Rising	Adware.Dialer!1.99F1 (CLASSIC)
Yandex	Trojan.GenAsa!AZtTaYFYKmA
Ikarus	Trojan-Ransom.HmBlocker
MaxSecure	Trojan.Malware.103918751.susgen
Fortinet	W32/Agent.XOR!tr
AVG	FileRepMalware
Paloalto	generic.ml

How to remove Win32/LockScreen.ZC?

Download and install GridinSoft Anti-Malware.
Open GridinSoft Anti-Malware and perform a “Standard scan“.
“Move to quarantine” all items.
Open “Tools” tab – Press “Reset Browser Settings“.
Select proper browser and options – Click “Reset”.
Restart your computer.

Win32/LockScreen.ZC (file analysis)