Categories: Ransom

Ransom:Win32/LockScreen.BA (file analysis)

The Ransom:Win32/LockScreen.BA 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 Ransom:Win32/LockScreen.BA virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Unconventionial language used in binary resources: Russian
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
a.tomx.xyz

How to determine Ransom:Win32/LockScreen.BA?


File Info:

crc32: 56FFD17Fmd5: a0e9b4f31779376c69aaf232601d62ebname: A0E9B4F31779376C69AAF232601D62EB.mlwsha1: 0e323889b3d8ff55de7086bfafb0a6b68c5541e1sha256: dde00d378a4a0a74096e94e20a954c94d770621bbc74ec0e494343a2e4ffdd55sha512: 0c606ee83d47ad2d40bac4b460545fdc550e478c74891ccb9624aa3884a83c5396bf40f6f30b627997c07a209b5019327a00ec90828e43f943a5cd06eb67042cssdeep: 6144:FET3dI2UsWHd36NqZuHHdSzTFi4DzILnLD:ORzUsY56UZungPgtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.BA also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Kazy.18491
FireEye Generic.mg.a0e9b4f31779376c
CAT-QuickHeal TrojanRansom.Losya
ALYac Gen:Variant.Kazy.18491
Cylance Unsafe
VIPRE Packed.Win32.PWSZbot.gen (v)
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( f1000f011 )
BitDefender Gen:Variant.Kazy.18491
K7GW Trojan ( f1000f011 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34590.omGfaqqbJYf
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.MOS
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Losya-22
Kaspersky Trojan-Ransom.Win32.Losya.dd
Alibaba Ransom:Win32/Losya.1f845559
NANO-Antivirus Trojan.Win32.Losya.ipqzy
AegisLab Trojan.Win32.Losya.j!c
Rising Ransom.Losya!8.59CD (CLOUD)
Ad-Aware Gen:Variant.Kazy.18491
Emsisoft Gen:Variant.Kazy.18491 (B)
Comodo Malware@#2uehibaf7qane
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb Trojan.Winlock.2876
TrendMicro Ransom_LockScreen.R002C0DBR21
McAfee-GW-Edition BehavesLike.Win32.Downloader.dc
Sophos Mal/Generic-R + Mal/Zbot-EZ
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Losya.ba
MaxSecure Trojan.Malware.1960287.susgen
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.AGeneric
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/LockScreen.BA
Arcabit Trojan.Kazy.D483B
ZoneAlarm Trojan-Ransom.Win32.Losya.dd
GData Gen:Variant.Kazy.18491
Cynet Malicious (score: 100)
McAfee Artemis!A0E9B4F31779
VBA32 Trojan.Zeus.EA.0999
Malwarebytes Malware.Heuristic.1003
Panda Generic Malware
TrendMicro-HouseCall Ransom_LockScreen.R002C0DBR21
Tencent Win32.Trojan.Losya.Lmuj
Yandex Trojan.GenAsa!pJ5DRYBaO4w
Ikarus Trojan-Ransom.Gimemo
eGambit Generic.Malware
Fortinet W32/Krap.A!tr
Webroot W32.Malware.Gen
AVG Win32:Malware-gen
Cybereason malicious.317793
Qihoo-360 Win32/Ransom.Generic.HwsBqd0A

How to remove Ransom:Win32/LockScreen.BA?

  • 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.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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