Categories: Trojan

About “Trojan:Win32/Lethic.B” infection

The Trojan:Win32/Lethic.B 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 Trojan:Win32/Lethic.B virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Creates RWX memory
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Detects the presence of Wine emulator via function name
  • Detects SunBelt Sandbox through the presence of a library
  • Detects Avast Antivirus through the presence of a library
  • Deletes its original binary from disk
  • A system process is generating network traffic likely as a result of process injection
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Checks the version of Bios, possibly for anti-virtualization
  • Detects VirtualBox through the presence of a device
  • Detects VirtualBox through the presence of a registry key
  • Creates a copy of itself

How to determine Trojan:Win32/Lethic.B?


File Info:

crc32: 4C504E11md5: 092823c5cef7babb6f4c9f06d82c7264name: 092823C5CEF7BABB6F4C9F06D82C7264.mlwsha1: 73f57c30094edc869fb2d8498df853d028fc95b7sha256: de885ea74c52803c852ddbfa32151cc52144aaa0eaa448d043bf52e37139adaesha512: ed3b2e4ba493289d3a67ed46ca6b8b8cb14a539840e3bbca600323d28e0299e4a110caad5407ea5516e58be9693403b95e04adc1a665bdf47ab7188618358e4assdeep: 3072:D3n4Q53Tt8Kq19fh3sq806BjDJkQp6ai:D3n4WDtg9fy+c/type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Lethic.B also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Mikey.117447
FireEye Generic.mg.092823c5cef7babb
ALYac Gen:Variant.Mikey.117447
Cylance Unsafe
Zillya Trojan.Kasidet.Win32.104
Sangfor Malware
K7AntiVirus Trojan ( 0056f03e1 )
BitDefender Gen:Variant.Mikey.117447
K7GW Trojan ( 0056f03e1 )
CrowdStrike win/malicious_confidence_100% (D)
Symantec Packed.Generic.521
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Kryptik.f42a6cad
NANO-Antivirus Trojan.Win32.Kasidet.eqfgli
AegisLab Trojan.Win32.Kasidet.4!c
Ad-Aware Gen:Variant.Mikey.117447
Emsisoft Gen:Variant.Mikey.117447 (B)
Comodo TrojWare.Win32.Kasidet.GV@760620
F-Secure Heuristic.HEUR/AGEN.1129216
DrWeb Trojan.DownLoader25.1907
VIPRE Trojan.Win32.Generic!BT
TrendMicro WORM_HPKASIDET.SM1
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
Sophos Mal/Generic-S
Ikarus Trojan.Win32.Krypt
Jiangmin Trojan.Kasidet.bn
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1129216
MAX malware (ai score=83)
Antiy-AVL Trojan/Win32.Kasidet
Kingsoft Win32.Troj.GenericKD.v.(kcloud)
Microsoft Trojan:Win32/Lethic.B
Arcabit Trojan.Mikey.D1CAC7
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Mikey.117447
Cynet Malicious (score: 90)
AhnLab-V3 Trojan/Win32.Kasidet.R203124
Acronis suspicious
McAfee Packed-MY!092823C5CEF7
TACHYON Trojan/W32.Kasidet.131072
VBA32 Trojan.Kasidet
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Injector.DPNR
TrendMicro-HouseCall WORM_HPKASIDET.SM1
Rising Trojan.Kasidet!8.785 (CLOUD)
Yandex Trojan.GenAsa!Y+wAkOUMcFY
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_85%
Fortinet W32/GenKryptik.BZKP!tr
BitDefenderTheta Gen:NN.ZexaF.34804.iqW@aW05edo
AVG Win32:Malware-gen
Cybereason malicious.5cef7b
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCXJsA

How to remove Trojan:Win32/Lethic.B?

  • 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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