MSIL/LockScreen.YO

Spectating the MSIL/LockScreen.YO detection usually means that your PC is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and asks you to pay for their decryption. Removing it requires some specific steps that must be taken as soon as possible.

MSIL/LockScreen.YO detection is a virus detection you can spectate in your computer. It usually shows up after the provoking activities on your computer – opening the suspicious e-mail, clicking the banner in the Internet or mounting the program from untrustworthy resources. From the instance it appears, you have a short time to do something about it before it starts its destructive activity. And be sure – it is far better not to await these destructive effects.

What is MSIL/LockScreen.YO virus?

MSIL/LockScreen.YO Summary

In total, MSIL/LockScreen.YO virus activities in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Sample contains Overlay data;
  • Creates RWX memory;
  • Guard pages use detected – possible anti-debugging.;
  • A process attempted to delay the analysis task.;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • Unconventionial language used in binary resources: Russian;
  • Authenticode signature is invalid;
  • Installs itself for autorun at Windows startup;
  • Encrypting the documents kept on the target’s disk drives — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a horror story for the last 4 years. It is hard to realize a more dangerous malware for both individual users and businesses. The algorithms utilized in MSIL/LockScreen.YO (usually, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy currently exists, and possibly will exist. However, that malware does not do all these terrible things instantly – it can require up to a few hours to cipher all of your documents. Therefore, seeing the MSIL/LockScreen.YO detection is a clear signal that you have to start the clearing procedure.

Where did I get the MSIL/LockScreen.YO?

Routine ways of MSIL/LockScreen.YO distribution are standard for all other ransomware variants. Those are one-day landing sites where victims are offered to download and install the free software, so-called bait emails and hacktools. Bait e-mails are a quite modern strategy in malware distribution – you receive the e-mail that mimics some normal notifications about deliveries or bank service conditions shifts. Within the email, there is an infected MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks quite simple, however, still demands tons of attention. Malware can hide in different spots, and it is better to stop it even before it gets into your system than to depend on an anti-malware program. Common cybersecurity knowledge is just an essential item in the modern-day world, even if your interaction with a computer stays on YouTube videos. That can keep you a great deal of time and money which you would certainly spend while searching for a solution.

MSIL/LockScreen.YO malware technical details

File Info:

name: 36419D62824B6E547C97.mlwpath: /opt/CAPEv2/storage/binaries/349508bdc31aa72e48eaf47543c0f007126df7e2691a22d2d37ac70e1cd00c62crc32: 4B0B8443md5: 36419d62824b6e547c978cca76e4c00csha1: 64b7a1a79bbe14463ac43e74add7c293c7c9ec5asha256: 349508bdc31aa72e48eaf47543c0f007126df7e2691a22d2d37ac70e1cd00c62sha512: 48bf6ba22e145a6a51b1b8de09e4773578c86e94c753c990f0addc24e5259a523d8dc6079741cf8c4dd2225bdad5fae95e4a60964b225493ed0d59a84c3415ccssdeep: 12288:VUomEFRu3xEPEIdWlEw7aAGd3OpABNIezf2FIK/nxIre:zmOMSPEIdWpG5uezuyK/xGetype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T15EA4012270C1C072D507A2B089988B62B5B4BE340366584AFF993F6D7F356F2EB19747sha3_384: 796c28ff7bd9b0ed432d9897dc57f8eb2a29b0dec7678108acc168e4381b55a04422010b11a8252415fd2b736449d1baep_bytes: e85d640000e978feffff8bff558bec56timestamp: 2014-06-10 17:11:07

Version Info:

0: [No Data]

MSIL/LockScreen.YO also known as:

Lionic Trojan.MSIL.Agent.4!c
MicroWorld-eScan Trojan.GenericKD.32070868
FireEye Trojan.GenericKD.32070868
ALYac Trojan.GenericKD.32070868
Cylance Unsafe
VIPRE Trojan.GenericKD.32070868
Sangfor Ransom.MSIL.Agent.fqlx
K7AntiVirus Trojan ( 005334e41 )
BitDefender Trojan.GenericKD.32070868
K7GW Trojan ( 005334e41 )
Cybereason malicious.2824b6
BitDefenderTheta Gen:NN.ZemsilF.34806.dn3@aOkaeKi
Cyren W32/MSIL_Troj.L.gen!Eldorado
Symantec Trojan.Gen.MBT
ESET-NOD32 MSIL/LockScreen.YO
ClamAV Win.Worm.Ircbot-9829658-0
Kaspersky Trojan-Ransom.MSIL.Agent.fqlx
Alibaba Trojan:MSIL/Skeeyah.ad922f43
NANO-Antivirus Trojan.Win32.LockScreen.fdpamd
Rising Trojan.Generic/[email protected] (RDM.MSIL:NV2UWEnFbmcLo7AjfAabRA)
Ad-Aware Trojan.GenericKD.32070868
Sophos Mal/Generic-S
Comodo Malware@#1bwb8yo84acls
McAfee-GW-Edition PWS-Zbot.gen.po
Emsisoft Trojan.GenericKD.32070868 (B)
Ikarus Trojan.MSIL.LockScreen
Webroot W32.Malware.Gen
Avira TR/LockScreen.ykcya
MAX malware (ai score=94)
Microsoft Trojan:Win32/Vigorf.A
GData Trojan.GenericKD.32070868
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Gen.Generic.C2549193
McAfee Artemis!36419D62824B
Malwarebytes Trojan.Agent.MSIL
Panda Trj/CI.A
APEX Malicious
Tencent Msil.Trojan.Agent.Liqj
Yandex Trojan.WLock!Ne1Iw2Om9Pc
SentinelOne Static AI – Malicious SFX
MaxSecure Trojan.Malware.300983.susgen
Fortinet PossibleThreat
CrowdStrike win/malicious_confidence_100% (W)

How to remove MSIL/LockScreen.YO?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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