Categories: Trojan

How to remove “Trojan.Nisloder”?

The Trojan.Nisloder 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.Nisloder virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Sample contains Overlay data
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Transacted Hollowing
  • Created a process from a suspicious location
  • Collects and encrypts information about the computer likely to send to C2 server
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Creates a hidden or system file
  • Creates a copy of itself
  • Collects information to fingerprint the system

How to determine Trojan.Nisloder?


File Info:

name: C89EC0E25B82FA7DC745.mlwpath: /opt/CAPEv2/storage/binaries/4494db9fe21c1079e5b2d394d62097be1bf6501ce0cddccef99564e2b551da3fcrc32: 9FE82891md5: c89ec0e25b82fa7dc745f2af304f7570sha1: 343c8152abac7a9df7f99bf4ac41663adb9faa70sha256: 4494db9fe21c1079e5b2d394d62097be1bf6501ce0cddccef99564e2b551da3fsha512: 1d5893b6d656deb96d8a97d7c505a0751825b610f3aa35da6905c8306c68732205cd2cf4e5041ccd0af0149ca697ec5fde3df5d6742fdc6b6b7d948d8c40646fssdeep: 12288:hbd3HwFrp0Czrc3/m8jG9+reazRO70oH5eOk+hlud4OABYTEnimUcjw6T91Jv6nb:hbd3Hwhp0Gc3/m8y8zohlu9AiEicQbftype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T17AF423813EB25979C1ABBA723B4BA792D272DD080A7B57072FE7927C1C323C34466459sha3_384: c99ba93985b778232908edc75a18a381d297d03ddb5f463e8fef1ea7f49dc58a141cca14df93c5cd12585ae280ceb0f3ep_bytes: 81ec8401000053555633db57895c2418timestamp: 2014-10-07 04:40:17

Version Info:

0: [No Data]

Trojan.Nisloder also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Cryptor.j!c
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4356
MicroWorld-eScan Trojan.GenericKD.12513907
FireEye Generic.mg.c89ec0e25b82fa7d
CAT-QuickHeal Ransom.Onion.A
ALYac Trojan.GenericKD.12513907
Cylance Unsafe
Sangfor Trojan.Win32.CTBLocker.A
K7AntiVirus Trojan ( 004dcfc21 )
Alibaba Ransom:Win32/Cryptor.872194a0
K7GW Trojan ( 004dcfc21 )
Cybereason malicious.25b82f
BitDefenderTheta Gen:NN.ZedlaF.34806.bC8@auLlDhd
VirIT Trojan.Win32.Dropper.WP
Symantec Packed.NSISPacker!g6
ESET-NOD32 Win32/Filecoder.CTBLocker.A
TrendMicro-HouseCall Ransom_CRYPCTB.AF
Paloalto generic.ml
Kaspersky Trojan-Ransom.Win32.Cryptor.dj
BitDefender Trojan.GenericKD.12513907
NANO-Antivirus Trojan.Win32.Encoder.eedxvl
Avast Win32:Malware-gen
Tencent Win32.Trojan.Cryptor.Szvi
Ad-Aware Trojan.GenericKD.12513907
Emsisoft Trojan.GenericKD.12513907 (B)
Comodo Malware@#1jhhnjd87zosp
VIPRE Trojan.GenericKD.12513907
TrendMicro Ransom_CRYPCTB.AF
McAfee-GW-Edition BehavesLike.Win32.Dropper.bc
Trapmine suspicious.low.ml.score
Sophos ML/PE-A + Mal/Cerber-Z
Ikarus Trojan.Win32.Injector
GData Trojan.GenericKD.12513907
Webroot Trojan.Dropper.Gen
Avira TR/Dropper.Gen
Antiy-AVL Trojan/Generic.ASMalwS.5174
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Arcabit Trojan.Generic.DBEF273
ViRobot Trojan.Win32.S.CTB-Locker.782541
Microsoft Ransom:Win32/Critroni
Cynet Malicious (score: 99)
AhnLab-V3 Trojan/Win32.CTBLocker.R183951
McAfee Artemis!C89EC0E25B82
TACHYON Ransom/W32.Cryptor.782541
VBA32 Trojan.Nisloder
Malwarebytes Ransom.CTBLocker
APEX Malicious
Rising Trojan.Generic@AI.95 (RDML:E7/iIECs9Ugc8VK3UKmbmw)
Yandex Trojan.GenAsa!BKRcJEcmJcE
MAX malware (ai score=100)
Fortinet W32/Injector.DAJC!tr
AVG Win32:Malware-gen
Panda Trj/CI.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Trojan.Nisloder?

  • 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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