Categories: Malware

What is “Win32/ServStart.AG”?

The Win32/ServStart.AG 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/ServStart.AG virus can do?

  • Attempts to connect to a dead IP:Port (1 unique times)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • A file with an unusual extension was attempted to be loaded as a DLL.
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Anomalous file deletion behavior detected (10+)
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Deletes executed files from disk

How to determine Win32/ServStart.AG?


File Info:

name: A7A5E7E58B65477037D4.mlwpath: /opt/CAPEv2/storage/binaries/3766c8b4489bff30755d45db7f3b9812131f766c8baac9f7eff6fd344b7e97bfcrc32: 12CE2788md5: a7a5e7e58b65477037d4da37f5751adcsha1: 8b489d03591d32a0ee4cceea593b936d09e4c10fsha256: 3766c8b4489bff30755d45db7f3b9812131f766c8baac9f7eff6fd344b7e97bfsha512: d3d49f3101c4192e5c066af69e8e0a7efd5f992d053d03c8ca0012c71891a56da0d2905e5e1708c3b3ffd379863d32e540e694a0b52a63904bad2860d64fec01ssdeep: 768:ejpwG0nGVsTVtyktlsvFDgT4Z997hdP0sHqIKhSjjJO8+O:e1/+ptjtCNgi997vPpHqIKqJO8type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T10743CF12336C0952C0684C31E47EDA6E1ABA1FA775994ECBC6617B97AE2C3C1FC35039sha3_384: 6e25beaf0dc0374d20a1b2e06bcf62659528357c9a9b28295dc0997babd9d58e7f37e58a47aabcc5bb0b475f000f416eep_bytes: 558bec81ec0c02000056be040100008dtimestamp: 2009-12-04 13:35:59

Version Info:

0: [No Data]

Win32/ServStart.AG also known as:

Bkav W32.AIDetect.malware2
DrWeb Trojan.DownLoader9.28506
MicroWorld-eScan Gen:Heur.Mint.Zard.30
FireEye Generic.mg.a7a5e7e58b654770
McAfee Artemis!A7A5E7E58B65
Cylance Unsafe
VIPRE Gen:Heur.Mint.Zard.30
CrowdStrike win/malicious_confidence_70% (W)
BitDefenderTheta Gen:NN.ZexaF.34806.diW@auCCh@cb
Cyren W32/Troj_Obfusc.AR.gen!Eldorado
Symantec Trojan.Lapka
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/ServStart.AG
APEX Malicious
Kaspersky Trojan.Win32.Scar.gvil
BitDefender Gen:Heur.Mint.Zard.30
NANO-Antivirus Trojan.Win32.Rbot.dmzifc
Avast Win32:Lapka-D [Rtk]
Ad-Aware Gen:Heur.Mint.Zard.30
Emsisoft Gen:Heur.Mint.Zard.30 (B)
Comodo TrojWare.Win32.Agent.PDSB@4q3i1w
McAfee-GW-Edition GenericRXAC-FO!655D12E373B5
Trapmine malicious.high.ml.score
Sophos Mal/Generic-R
Avira WORM/Rbot.Gen
MAX malware (ai score=88)
Microsoft Trojan:Win32/Wacatac.B!ml
GData Gen:Heur.Mint.Zard.30
Cynet Malicious (score: 100)
VBA32 BScope.Backdoor.Zegost
Malwarebytes Malware.Heuristic.1001
Rising Backdoor.Overie!1.64BD (CLASSIC)
SentinelOne Static AI – Malicious PE
AVG Win32:Lapka-D [Rtk]
Cybereason malicious.58b654
Panda Trj/Genetic.gen

How to remove Win32/ServStart.AG?

  • 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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